refactor(download): remove concurrent download option

The download API only permits one request at a time, so parallel
downloads are removed to avoid wasted/blocked API calls. Downloads
now always run sequentially (one track at a time).

- Drop concurrentDownloads from AppSettings + JSON serialization
- Remove setConcurrentDownloads and the settings UI (1-5 chips + warning)
- Strip optionsConcurrent* l10n keys from all ARBs and regenerate
- Rework queue worker into _processQueueSequential (single active download)
- Update marketing copy and adjust tests

lib/l10n/app_localizations.dart

@@ -494,30 +494,6 @@ abstract class AppLocalizations {
   /// **'Write one artist tag per artist for FLAC and Opus; MP3 and M4A stay joined.'**
   String get optionsArtistTagModeSplitVorbisSubtitle;
 
-  /// Number of parallel downloads
-  ///
-  /// In en, this message translates to:
-  /// **'Concurrent Downloads'**
-  String get optionsConcurrentDownloads;
-
-  /// Download one at a time
-  ///
-  /// In en, this message translates to:
-  /// **'Sequential (1 at a time)'**
-  String get optionsConcurrentSequential;
-
-  /// Multiple parallel downloads
-  ///
-  /// In en, this message translates to:
-  /// **'{count} parallel downloads'**
-  String optionsConcurrentParallel(int count);
-
-  /// Warning about rate limits
-  ///
-  /// In en, this message translates to:
-  /// **'Parallel downloads may trigger rate limiting'**
-  String get optionsConcurrentWarning;
-
   /// Show/hide store tab
   ///
   /// In en, this message translates to:

lib/l10n/app_localizations_ar.dart

@@ -206,21 +206,6 @@ class AppLocalizationsAr extends AppLocalizations {
   String get optionsArtistTagModeSplitVorbisSubtitle =>
       'Write one artist tag per artist for FLAC and Opus; MP3 and M4A stay joined.';
 
-  @override
-  String get optionsConcurrentDownloads => 'Concurrent Downloads';
-
-  @override
-  String get optionsConcurrentSequential => 'Sequential (1 at a time)';
-
-  @override
-  String optionsConcurrentParallel(int count) {
-    return '$count parallel downloads';
-  }
-
-  @override
-  String get optionsConcurrentWarning =>
-      'Parallel downloads may trigger rate limiting';
-
   @override
   String get optionsExtensionStore => 'Extension Repo';
 

lib/l10n/app_localizations_de.dart

@@ -211,21 +211,6 @@ class AppLocalizationsDe extends AppLocalizations {
   String get optionsArtistTagModeSplitVorbisSubtitle =>
       'Schreibe einen Künstler Tag pro Künstler für FLAC und Opus; MP3 und M4A bleiben beigetreten.';
 
-  @override
-  String get optionsConcurrentDownloads => 'Parallele Downloads';
-
-  @override
-  String get optionsConcurrentSequential => 'Sequentiell (1 gleichzeitig)';
-
-  @override
-  String optionsConcurrentParallel(int count) {
-    return '$count parallele Downloads';
-  }
-
-  @override
-  String get optionsConcurrentWarning =>
-      'Parallele Downloads können Ratenlimitierung auslösen';
-
   @override
   String get optionsExtensionStore => 'Erweiterungs-Repo';
 

lib/l10n/app_localizations_en.dart

@@ -206,21 +206,6 @@ class AppLocalizationsEn extends AppLocalizations {
   String get optionsArtistTagModeSplitVorbisSubtitle =>
       'Write one artist tag per artist for FLAC and Opus; MP3 and M4A stay joined.';
 
-  @override
-  String get optionsConcurrentDownloads => 'Concurrent Downloads';
-
-  @override
-  String get optionsConcurrentSequential => 'Sequential (1 at a time)';
-
-  @override
-  String optionsConcurrentParallel(int count) {
-    return '$count parallel downloads';
-  }
-
-  @override
-  String get optionsConcurrentWarning =>
-      'Parallel downloads may trigger rate limiting';
-
   @override
   String get optionsExtensionStore => 'Extension Repo';
 

lib/l10n/app_localizations_es.dart

@@ -206,21 +206,6 @@ class AppLocalizationsEs extends AppLocalizations {
   String get optionsArtistTagModeSplitVorbisSubtitle =>
       'Write one artist tag per artist for FLAC and Opus; MP3 and M4A stay joined.';
 
-  @override
-  String get optionsConcurrentDownloads => 'Concurrent Downloads';
-
-  @override
-  String get optionsConcurrentSequential => 'Sequential (1 at a time)';
-
-  @override
-  String optionsConcurrentParallel(int count) {
-    return '$count parallel downloads';
-  }
-
-  @override
-  String get optionsConcurrentWarning =>
-      'Parallel downloads may trigger rate limiting';
-
   @override
   String get optionsExtensionStore => 'Extension Store';
 
@@ -4448,21 +4433,6 @@ class AppLocalizationsEsEs extends AppLocalizationsEs {
   String get optionsArtistTagModeSplitVorbisSubtitle =>
       'Escribe una etiqueta de artista por artista para FLAC y OPUS; MP3 y M4A se mantienen agrupados.';
 
-  @override
-  String get optionsConcurrentDownloads => 'Descargas simultáneas';
-
-  @override
-  String get optionsConcurrentSequential => 'Secuencial (1 a la vez)';
-
-  @override
-  String optionsConcurrentParallel(int count) {
-    return '$count descargas en paralelo';
-  }
-
-  @override
-  String get optionsConcurrentWarning =>
-      'Las descargas paralelas pueden activar la limitación de velocidad';
-
   @override
   String get optionsExtensionStore => 'Extensión Repo';
 

lib/l10n/app_localizations_fr.dart

@@ -213,21 +213,6 @@ class AppLocalizationsFr extends AppLocalizations {
   String get optionsArtistTagModeSplitVorbisSubtitle =>
       'Créez une balise « artiste » par artiste pour les fichiers FLAC et Opus ; les fichiers MP3 et M4A restent regroupés.';
 
-  @override
-  String get optionsConcurrentDownloads => 'Téléchargements simultanés';
-
-  @override
-  String get optionsConcurrentSequential => 'Séquentiel (1 à la fois)';
-
-  @override
-  String optionsConcurrentParallel(int count) {
-    return '$count téléchargements simultanés';
-  }
-
-  @override
-  String get optionsConcurrentWarning =>
-      'Les téléchargements simultanés peuvent déclencher une limitation du débit';
-
   @override
   String get optionsExtensionStore => 'Référentiel d\'extensions';
 

lib/l10n/app_localizations_hi.dart

@@ -206,21 +206,6 @@ class AppLocalizationsHi extends AppLocalizations {
   String get optionsArtistTagModeSplitVorbisSubtitle =>
       'Write one artist tag per artist for FLAC and Opus; MP3 and M4A stay joined.';
 
-  @override
-  String get optionsConcurrentDownloads => 'Concurrent Downloads';
-
-  @override
-  String get optionsConcurrentSequential => 'Sequential (1 at a time)';
-
-  @override
-  String optionsConcurrentParallel(int count) {
-    return '$count parallel downloads';
-  }
-
-  @override
-  String get optionsConcurrentWarning =>
-      'Parallel downloads may trigger rate limiting';
-
   @override
   String get optionsExtensionStore => 'Extension Repo';
 

lib/l10n/app_localizations_id.dart

@@ -209,21 +209,6 @@ class AppLocalizationsId extends AppLocalizations {
   String get optionsArtistTagModeSplitVorbisSubtitle =>
       'Tulis satu tag artis per artis untuk FLAC dan Opus; MP3 dan M4A tetap tergabung.';
 
-  @override
-  String get optionsConcurrentDownloads => 'Unduhan Bersamaan';
-
-  @override
-  String get optionsConcurrentSequential => 'Berurutan (1 per waktu)';
-
-  @override
-  String optionsConcurrentParallel(int count) {
-    return '$count unduhan paralel';
-  }
-
-  @override
-  String get optionsConcurrentWarning =>
-      'Unduhan paralel dapat memicu pembatasan rate';
-
   @override
   String get optionsExtensionStore => 'Extension Repo';
 

lib/l10n/app_localizations_ja.dart

@@ -205,21 +205,6 @@ class AppLocalizationsJa extends AppLocalizations {
   String get optionsArtistTagModeSplitVorbisSubtitle =>
       'Write one artist tag per artist for FLAC and Opus; MP3 and M4A stay joined.';
 
-  @override
-  String get optionsConcurrentDownloads => '同時ダウンロード';
-
-  @override
-  String get optionsConcurrentSequential => 'Sequential (1 at a time)';
-
-  @override
-  String optionsConcurrentParallel(int count) {
-    return '$count 件の分割ダウンロード';
-  }
-
-  @override
-  String get optionsConcurrentWarning =>
-      'Parallel downloads may trigger rate limiting';
-
   @override
   String get optionsExtensionStore => 'Extension Repo';
 

lib/l10n/app_localizations_ko.dart

@@ -202,20 +202,6 @@ class AppLocalizationsKo extends AppLocalizations {
   String get optionsArtistTagModeSplitVorbisSubtitle =>
       'Write one artist tag per artist for FLAC and Opus; MP3 and M4A stay joined.';
 
-  @override
-  String get optionsConcurrentDownloads => '동시 다운로드';
-
-  @override
-  String get optionsConcurrentSequential => '순차 다운로드 (한 번에 하나)';
-
-  @override
-  String optionsConcurrentParallel(int count) {
-    return '$count개 동시 다운로드';
-  }
-
-  @override
-  String get optionsConcurrentWarning => '동시에 다수의 음반을 다운로드하면 속도 제한이 발생할 수 있습니다';
-
   @override
   String get optionsExtensionStore => 'Extension Repo';
 

lib/l10n/app_localizations_nl.dart

@@ -206,21 +206,6 @@ class AppLocalizationsNl extends AppLocalizations {
   String get optionsArtistTagModeSplitVorbisSubtitle =>
       'Write one artist tag per artist for FLAC and Opus; MP3 and M4A stay joined.';
 
-  @override
-  String get optionsConcurrentDownloads => 'Concurrent Downloads';
-
-  @override
-  String get optionsConcurrentSequential => 'Sequentiële (1 per keer)';
-
-  @override
-  String optionsConcurrentParallel(int count) {
-    return '$count parallel downloads';
-  }
-
-  @override
-  String get optionsConcurrentWarning =>
-      'Parallel downloaden kan leiden tot rate-limiting';
-
   @override
   String get optionsExtensionStore => 'Extension Repo';
 

lib/l10n/app_localizations_pt.dart

@@ -206,21 +206,6 @@ class AppLocalizationsPt extends AppLocalizations {
   String get optionsArtistTagModeSplitVorbisSubtitle =>
       'Write one artist tag per artist for FLAC and Opus; MP3 and M4A stay joined.';
 
-  @override
-  String get optionsConcurrentDownloads => 'Concurrent Downloads';
-
-  @override
-  String get optionsConcurrentSequential => 'Sequential (1 at a time)';
-
-  @override
-  String optionsConcurrentParallel(int count) {
-    return '$count parallel downloads';
-  }
-
-  @override
-  String get optionsConcurrentWarning =>
-      'Parallel downloads may trigger rate limiting';
-
   @override
   String get optionsExtensionStore => 'Extension Store';
 
@@ -4447,21 +4432,6 @@ class AppLocalizationsPtPt extends AppLocalizationsPt {
   String get optionsArtistTagModeSplitVorbisSubtitle =>
       'Write one artist tag per artist for FLAC and Opus; MP3 and M4A stay joined.';
 
-  @override
-  String get optionsConcurrentDownloads => 'Downloads Simultâneos';
-
-  @override
-  String get optionsConcurrentSequential => 'Sequencial (1 por vez)';
-
-  @override
-  String optionsConcurrentParallel(int count) {
-    return '$count downloads paralelos';
-  }
-
-  @override
-  String get optionsConcurrentWarning =>
-      'Downloads simultâneos podem causar um limite da taxa (ratelimit)';
-
   @override
   String get optionsExtensionStore => 'Extension Repo';
 

lib/l10n/app_localizations_ru.dart

@@ -211,21 +211,6 @@ class AppLocalizationsRu extends AppLocalizations {
   String get optionsArtistTagModeSplitVorbisSubtitle =>
       'Write one artist tag per artist for FLAC and Opus; MP3 and M4A stay joined.';
 
-  @override
-  String get optionsConcurrentDownloads => 'Одновременные загрузки';
-
-  @override
-  String get optionsConcurrentSequential => 'Последовательно (1 за раз)';
-
-  @override
-  String optionsConcurrentParallel(int count) {
-    return '$count параллельных загрузок';
-  }
-
-  @override
-  String get optionsConcurrentWarning =>
-      'Параллельные загрузки могут вызвать ограничение скорости';
-
   @override
   String get optionsExtensionStore => 'Репозиторий расширения';
 

lib/l10n/app_localizations_tr.dart

@@ -211,21 +211,6 @@ class AppLocalizationsTr extends AppLocalizations {
   String get optionsArtistTagModeSplitVorbisSubtitle =>
       'FLAC ve Opus için her sanatçıya ayrı bir etiket yazın; MP3 ve M4A birleşik kalır.';
 
-  @override
-  String get optionsConcurrentDownloads => 'Eş Zamanlı İndirmeler';
-
-  @override
-  String get optionsConcurrentSequential => 'Sıralı (Birer birer)';
-
-  @override
-  String optionsConcurrentParallel(int count) {
-    return 'Aynı anda $count indirme';
-  }
-
-  @override
-  String get optionsConcurrentWarning =>
-      'Aynı anda birden fazla indirme sınırlamaya takılabilir';
-
   @override
   String get optionsExtensionStore => 'Eklenti Deposu';
 

lib/l10n/app_localizations_uk.dart

@@ -212,21 +212,6 @@ class AppLocalizationsUk extends AppLocalizations {
   String get optionsArtistTagModeSplitVorbisSubtitle =>
       'Для FLAC та Opus на кожного виконавця додати окремий тег виконавця; MP3 та M4A залишаються об’єднаними.';
 
-  @override
-  String get optionsConcurrentDownloads => 'Кількість одночасних завантажень';
-
-  @override
-  String get optionsConcurrentSequential => 'Послідовно (по одному за раз)';
-
-  @override
-  String optionsConcurrentParallel(int count) {
-    return '$count паралельних завантажень';
-  }
-
-  @override
-  String get optionsConcurrentWarning =>
-      'Паралельні завантаження можуть призвести до обмеження швидкості';
-
   @override
   String get optionsExtensionStore => 'Репозиторій розширень';
 

lib/l10n/app_localizations_zh.dart

@@ -206,21 +206,6 @@ class AppLocalizationsZh extends AppLocalizations {
   String get optionsArtistTagModeSplitVorbisSubtitle =>
       'Write one artist tag per artist for FLAC and Opus; MP3 and M4A stay joined.';
 
-  @override
-  String get optionsConcurrentDownloads => 'Concurrent Downloads';
-
-  @override
-  String get optionsConcurrentSequential => 'Sequential (1 at a time)';
-
-  @override
-  String optionsConcurrentParallel(int count) {
-    return '$count parallel downloads';
-  }
-
-  @override
-  String get optionsConcurrentWarning =>
-      'Parallel downloads may trigger rate limiting';
-
   @override
   String get optionsExtensionStore => 'Extension Store';
 
@@ -4434,20 +4419,6 @@ class AppLocalizationsZhCn extends AppLocalizationsZh {
   String get optionsArtistTagModeSplitVorbisSubtitle =>
       'Write one artist tag per artist for FLAC and Opus; MP3 and M4A stay joined.';
 
-  @override
-  String get optionsConcurrentDownloads => '并行下载数';
-
-  @override
-  String get optionsConcurrentSequential => '按顺序下载（一次一首）';
-
-  @override
-  String optionsConcurrentParallel(int count) {
-    return '同时下载 $count 首';
-  }
-
-  @override
-  String get optionsConcurrentWarning => '并行下载可能会触发速率限制';
-
   @override
   String get optionsExtensionStore => 'Extension Repo';
 
@@ -8670,21 +8641,6 @@ class AppLocalizationsZhTw extends AppLocalizationsZh {
   String get optionsArtistTagModeSplitVorbisSubtitle =>
       'Write one artist tag per artist for FLAC and Opus; MP3 and M4A stay joined.';
 
-  @override
-  String get optionsConcurrentDownloads => 'Concurrent Downloads';
-
-  @override
-  String get optionsConcurrentSequential => 'Sequential (1 at a time)';
-
-  @override
-  String optionsConcurrentParallel(int count) {
-    return '$count parallel downloads';
-  }
-
-  @override
-  String get optionsConcurrentWarning =>
-      'Parallel downloads may trigger rate limiting';
-
   @override
   String get optionsExtensionStore => 'Extension Repo';
 

lib/l10n/arb/app_ar.arb

@@ -250,27 +250,6 @@
   "@optionsArtistTagModeSplitVorbisSubtitle": {
     "description": "Subtitle for split Vorbis artist tag mode"
   },
-  "optionsConcurrentDownloads": "Concurrent Downloads",
-  "@optionsConcurrentDownloads": {
-    "description": "Number of parallel downloads"
-  },
-  "optionsConcurrentSequential": "Sequential (1 at a time)",
-  "@optionsConcurrentSequential": {
-    "description": "Download one at a time"
-  },
-  "optionsConcurrentParallel": "{count} parallel downloads",
-  "@optionsConcurrentParallel": {
-    "description": "Multiple parallel downloads",
-    "placeholders": {
-      "count": {
-        "type": "int"
-      }
-    }
-  },
-  "optionsConcurrentWarning": "Parallel downloads may trigger rate limiting",
-  "@optionsConcurrentWarning": {
-    "description": "Warning about rate limits"
-  },
   "optionsExtensionStore": "Extension Repo",
   "@optionsExtensionStore": {
     "description": "Show/hide store tab"

lib/l10n/arb/app_de.arb

@@ -250,27 +250,6 @@
   "@optionsArtistTagModeSplitVorbisSubtitle": {
     "description": "Subtitle for split Vorbis artist tag mode"
   },
-  "optionsConcurrentDownloads": "Parallele Downloads",
-  "@optionsConcurrentDownloads": {
-    "description": "Number of parallel downloads"
-  },
-  "optionsConcurrentSequential": "Sequentiell (1 gleichzeitig)",
-  "@optionsConcurrentSequential": {
-    "description": "Download one at a time"
-  },
-  "optionsConcurrentParallel": "{count} parallele Downloads",
-  "@optionsConcurrentParallel": {
-    "description": "Multiple parallel downloads",
-    "placeholders": {
-      "count": {
-        "type": "int"
-      }
-    }
-  },
-  "optionsConcurrentWarning": "Parallele Downloads können Ratenlimitierung auslösen",
-  "@optionsConcurrentWarning": {
-    "description": "Warning about rate limits"
-  },
   "optionsExtensionStore": "Erweiterungs-Repo",
   "@optionsExtensionStore": {
     "description": "Show/hide store tab"

lib/l10n/arb/app_en.arb

@@ -250,27 +250,6 @@
   "@optionsArtistTagModeSplitVorbisSubtitle": {
     "description": "Subtitle for split Vorbis artist tag mode"
   },
-  "optionsConcurrentDownloads": "Concurrent Downloads",
-  "@optionsConcurrentDownloads": {
-    "description": "Number of parallel downloads"
-  },
-  "optionsConcurrentSequential": "Sequential (1 at a time)",
-  "@optionsConcurrentSequential": {
-    "description": "Download one at a time"
-  },
-  "optionsConcurrentParallel": "{count} parallel downloads",
-  "@optionsConcurrentParallel": {
-    "description": "Multiple parallel downloads",
-    "placeholders": {
-      "count": {
-        "type": "int"
-      }
-    }
-  },
-  "optionsConcurrentWarning": "Parallel downloads may trigger rate limiting",
-  "@optionsConcurrentWarning": {
-    "description": "Warning about rate limits"
-  },
   "optionsExtensionStore": "Extension Repo",
   "@optionsExtensionStore": {
     "description": "Show/hide store tab"

lib/l10n/arb/app_es.arb

@@ -182,27 +182,6 @@
   "@optionsMaxQualityCoverSubtitle": {
     "description": "Subtitle for max quality cover"
   },
-  "optionsConcurrentDownloads": "Concurrent Downloads",
-  "@optionsConcurrentDownloads": {
-    "description": "Number of parallel downloads"
-  },
-  "optionsConcurrentSequential": "Sequential (1 at a time)",
-  "@optionsConcurrentSequential": {
-    "description": "Download one at a time"
-  },
-  "optionsConcurrentParallel": "{count} parallel downloads",
-  "@optionsConcurrentParallel": {
-    "description": "Multiple parallel downloads",
-    "placeholders": {
-      "count": {
-        "type": "int"
-      }
-    }
-  },
-  "optionsConcurrentWarning": "Parallel downloads may trigger rate limiting",
-  "@optionsConcurrentWarning": {
-    "description": "Warning about rate limits"
-  },
   "optionsExtensionStore": "Extension Store",
   "@optionsExtensionStore": {
     "description": "Show/hide store tab"

lib/l10n/arb/app_es_ES.arb

@@ -250,27 +250,6 @@
   "@optionsArtistTagModeSplitVorbisSubtitle": {
     "description": "Subtitle for split Vorbis artist tag mode"
   },
-  "optionsConcurrentDownloads": "Descargas simultáneas",
-  "@optionsConcurrentDownloads": {
-    "description": "Number of parallel downloads"
-  },
-  "optionsConcurrentSequential": "Secuencial (1 a la vez)",
-  "@optionsConcurrentSequential": {
-    "description": "Download one at a time"
-  },
-  "optionsConcurrentParallel": "{count} descargas en paralelo",
-  "@optionsConcurrentParallel": {
-    "description": "Multiple parallel downloads",
-    "placeholders": {
-      "count": {
-        "type": "int"
-      }
-    }
-  },
-  "optionsConcurrentWarning": "Las descargas paralelas pueden activar la limitación de velocidad",
-  "@optionsConcurrentWarning": {
-    "description": "Warning about rate limits"
-  },
   "optionsExtensionStore": "Extensión Repo",
   "@optionsExtensionStore": {
     "description": "Show/hide store tab"

lib/l10n/arb/app_fr.arb

@@ -250,27 +250,6 @@
   "@optionsArtistTagModeSplitVorbisSubtitle": {
     "description": "Subtitle for split Vorbis artist tag mode"
   },
-  "optionsConcurrentDownloads": "Téléchargements simultanés",
-  "@optionsConcurrentDownloads": {
-    "description": "Number of parallel downloads"
-  },
-  "optionsConcurrentSequential": "Séquentiel (1 à la fois)",
-  "@optionsConcurrentSequential": {
-    "description": "Download one at a time"
-  },
-  "optionsConcurrentParallel": "{count} téléchargements simultanés",
-  "@optionsConcurrentParallel": {
-    "description": "Multiple parallel downloads",
-    "placeholders": {
-      "count": {
-        "type": "int"
-      }
-    }
-  },
-  "optionsConcurrentWarning": "Les téléchargements simultanés peuvent déclencher une limitation du débit",
-  "@optionsConcurrentWarning": {
-    "description": "Warning about rate limits"
-  },
   "optionsExtensionStore": "Référentiel d'extensions",
   "@optionsExtensionStore": {
     "description": "Show/hide store tab"

lib/l10n/arb/app_hi.arb

@@ -250,27 +250,6 @@
   "@optionsArtistTagModeSplitVorbisSubtitle": {
     "description": "Subtitle for split Vorbis artist tag mode"
   },
-  "optionsConcurrentDownloads": "Concurrent Downloads",
-  "@optionsConcurrentDownloads": {
-    "description": "Number of parallel downloads"
-  },
-  "optionsConcurrentSequential": "Sequential (1 at a time)",
-  "@optionsConcurrentSequential": {
-    "description": "Download one at a time"
-  },
-  "optionsConcurrentParallel": "{count} parallel downloads",
-  "@optionsConcurrentParallel": {
-    "description": "Multiple parallel downloads",
-    "placeholders": {
-      "count": {
-        "type": "int"
-      }
-    }
-  },
-  "optionsConcurrentWarning": "Parallel downloads may trigger rate limiting",
-  "@optionsConcurrentWarning": {
-    "description": "Warning about rate limits"
-  },
   "optionsExtensionStore": "Extension Repo",
   "@optionsExtensionStore": {
     "description": "Show/hide store tab"

lib/l10n/arb/app_id.arb

@@ -206,27 +206,6 @@
   "@optionsMaxQualityCoverSubtitle": {
     "description": "Subtitle for max quality cover"
   },
-  "optionsConcurrentDownloads": "Unduhan Bersamaan",
-  "@optionsConcurrentDownloads": {
-    "description": "Number of parallel downloads"
-  },
-  "optionsConcurrentSequential": "Berurutan (1 per waktu)",
-  "@optionsConcurrentSequential": {
-    "description": "Download one at a time"
-  },
-  "optionsConcurrentParallel": "{count} unduhan paralel",
-  "@optionsConcurrentParallel": {
-    "description": "Multiple parallel downloads",
-    "placeholders": {
-      "count": {
-        "type": "int"
-      }
-    }
-  },
-  "optionsConcurrentWarning": "Unduhan paralel dapat memicu pembatasan rate",
-  "@optionsConcurrentWarning": {
-    "description": "Warning about rate limits"
-  },
   "optionsExtensionStore": "Extension Repo",
   "@optionsExtensionStore": {
     "description": "Show/hide store tab"

lib/l10n/arb/app_ja.arb

@@ -190,27 +190,6 @@
   "@optionsMaxQualityCoverSubtitle": {
     "description": "Subtitle for max quality cover"
   },
-  "optionsConcurrentDownloads": "同時ダウンロード",
-  "@optionsConcurrentDownloads": {
-    "description": "Number of parallel downloads"
-  },
-  "optionsConcurrentSequential": "Sequential (1 at a time)",
-  "@optionsConcurrentSequential": {
-    "description": "Download one at a time"
-  },
-  "optionsConcurrentParallel": "{count} 件の分割ダウンロード",
-  "@optionsConcurrentParallel": {
-    "description": "Multiple parallel downloads",
-    "placeholders": {
-      "count": {
-        "type": "int"
-      }
-    }
-  },
-  "optionsConcurrentWarning": "Parallel downloads may trigger rate limiting",
-  "@optionsConcurrentWarning": {
-    "description": "Warning about rate limits"
-  },
   "optionsExtensionStore": "Extension Repo",
   "@optionsExtensionStore": {
     "description": "Show/hide store tab"

lib/l10n/arb/app_ko.arb

@@ -250,27 +250,6 @@
   "@optionsArtistTagModeSplitVorbisSubtitle": {
     "description": "Subtitle for split Vorbis artist tag mode"
   },
-  "optionsConcurrentDownloads": "동시 다운로드",
-  "@optionsConcurrentDownloads": {
-    "description": "Number of parallel downloads"
-  },
-  "optionsConcurrentSequential": "순차 다운로드 (한 번에 하나)",
-  "@optionsConcurrentSequential": {
-    "description": "Download one at a time"
-  },
-  "optionsConcurrentParallel": "{count}개 동시 다운로드",
-  "@optionsConcurrentParallel": {
-    "description": "Multiple parallel downloads",
-    "placeholders": {
-      "count": {
-        "type": "int"
-      }
-    }
-  },
-  "optionsConcurrentWarning": "동시에 다수의 음반을 다운로드하면 속도 제한이 발생할 수 있습니다",
-  "@optionsConcurrentWarning": {
-    "description": "Warning about rate limits"
-  },
   "optionsExtensionStore": "Extension Repo",
   "@optionsExtensionStore": {
     "description": "Show/hide store tab"

lib/l10n/arb/app_nl.arb

@@ -250,27 +250,6 @@
   "@optionsArtistTagModeSplitVorbisSubtitle": {
     "description": "Subtitle for split Vorbis artist tag mode"
   },
-  "optionsConcurrentDownloads": "Concurrent Downloads",
-  "@optionsConcurrentDownloads": {
-    "description": "Number of parallel downloads"
-  },
-  "optionsConcurrentSequential": "Sequentiële (1 per keer)",
-  "@optionsConcurrentSequential": {
-    "description": "Download one at a time"
-  },
-  "optionsConcurrentParallel": "{count} parallel downloads",
-  "@optionsConcurrentParallel": {
-    "description": "Multiple parallel downloads",
-    "placeholders": {
-      "count": {
-        "type": "int"
-      }
-    }
-  },
-  "optionsConcurrentWarning": "Parallel downloaden kan leiden tot rate-limiting",
-  "@optionsConcurrentWarning": {
-    "description": "Warning about rate limits"
-  },
   "optionsExtensionStore": "Extension Repo",
   "@optionsExtensionStore": {
     "description": "Show/hide store tab"

lib/l10n/arb/app_pt.arb

@@ -182,27 +182,6 @@
   "@optionsMaxQualityCoverSubtitle": {
     "description": "Subtitle for max quality cover"
   },
-  "optionsConcurrentDownloads": "Concurrent Downloads",
-  "@optionsConcurrentDownloads": {
-    "description": "Number of parallel downloads"
-  },
-  "optionsConcurrentSequential": "Sequential (1 at a time)",
-  "@optionsConcurrentSequential": {
-    "description": "Download one at a time"
-  },
-  "optionsConcurrentParallel": "{count} parallel downloads",
-  "@optionsConcurrentParallel": {
-    "description": "Multiple parallel downloads",
-    "placeholders": {
-      "count": {
-        "type": "int"
-      }
-    }
-  },
-  "optionsConcurrentWarning": "Parallel downloads may trigger rate limiting",
-  "@optionsConcurrentWarning": {
-    "description": "Warning about rate limits"
-  },
   "optionsExtensionStore": "Extension Store",
   "@optionsExtensionStore": {
     "description": "Show/hide store tab"

lib/l10n/arb/app_pt_PT.arb

@@ -250,27 +250,6 @@
   "@optionsArtistTagModeSplitVorbisSubtitle": {
     "description": "Subtitle for split Vorbis artist tag mode"
   },
-  "optionsConcurrentDownloads": "Downloads Simultâneos",
-  "@optionsConcurrentDownloads": {
-    "description": "Number of parallel downloads"
-  },
-  "optionsConcurrentSequential": "Sequencial (1 por vez)",
-  "@optionsConcurrentSequential": {
-    "description": "Download one at a time"
-  },
-  "optionsConcurrentParallel": "{count} downloads paralelos",
-  "@optionsConcurrentParallel": {
-    "description": "Multiple parallel downloads",
-    "placeholders": {
-      "count": {
-        "type": "int"
-      }
-    }
-  },
-  "optionsConcurrentWarning": "Downloads simultâneos podem causar um limite da taxa (ratelimit)",
-  "@optionsConcurrentWarning": {
-    "description": "Warning about rate limits"
-  },
   "optionsExtensionStore": "Extension Repo",
   "@optionsExtensionStore": {
     "description": "Show/hide store tab"

lib/l10n/arb/app_ru.arb

@@ -250,27 +250,6 @@
   "@optionsArtistTagModeSplitVorbisSubtitle": {
     "description": "Subtitle for split Vorbis artist tag mode"
   },
-  "optionsConcurrentDownloads": "Одновременные загрузки",
-  "@optionsConcurrentDownloads": {
-    "description": "Number of parallel downloads"
-  },
-  "optionsConcurrentSequential": "Последовательно (1 за раз)",
-  "@optionsConcurrentSequential": {
-    "description": "Download one at a time"
-  },
-  "optionsConcurrentParallel": "{count} параллельных загрузок",
-  "@optionsConcurrentParallel": {
-    "description": "Multiple parallel downloads",
-    "placeholders": {
-      "count": {
-        "type": "int"
-      }
-    }
-  },
-  "optionsConcurrentWarning": "Параллельные загрузки могут вызвать ограничение скорости",
-  "@optionsConcurrentWarning": {
-    "description": "Warning about rate limits"
-  },
   "optionsExtensionStore": "Репозиторий расширения",
   "@optionsExtensionStore": {
     "description": "Show/hide store tab"

lib/l10n/arb/app_tr.arb

@@ -190,27 +190,6 @@
   "@optionsMaxQualityCoverSubtitle": {
     "description": "Subtitle for max quality cover"
   },
-  "optionsConcurrentDownloads": "Eş Zamanlı İndirmeler",
-  "@optionsConcurrentDownloads": {
-    "description": "Number of parallel downloads"
-  },
-  "optionsConcurrentSequential": "Sıralı (Birer birer)",
-  "@optionsConcurrentSequential": {
-    "description": "Download one at a time"
-  },
-  "optionsConcurrentParallel": "Aynı anda {count} indirme",
-  "@optionsConcurrentParallel": {
-    "description": "Multiple parallel downloads",
-    "placeholders": {
-      "count": {
-        "type": "int"
-      }
-    }
-  },
-  "optionsConcurrentWarning": "Aynı anda birden fazla indirme sınırlamaya takılabilir",
-  "@optionsConcurrentWarning": {
-    "description": "Warning about rate limits"
-  },
   "optionsExtensionStore": "Eklenti Deposu",
   "@optionsExtensionStore": {
     "description": "Show/hide store tab"

lib/l10n/arb/app_uk.arb

@@ -250,27 +250,6 @@
   "@optionsArtistTagModeSplitVorbisSubtitle": {
     "description": "Subtitle for split Vorbis artist tag mode"
   },
-  "optionsConcurrentDownloads": "Кількість одночасних завантажень",
-  "@optionsConcurrentDownloads": {
-    "description": "Number of parallel downloads"
-  },
-  "optionsConcurrentSequential": "Послідовно (по одному за раз)",
-  "@optionsConcurrentSequential": {
-    "description": "Download one at a time"
-  },
-  "optionsConcurrentParallel": "{count} паралельних завантажень",
-  "@optionsConcurrentParallel": {
-    "description": "Multiple parallel downloads",
-    "placeholders": {
-      "count": {
-        "type": "int"
-      }
-    }
-  },
-  "optionsConcurrentWarning": "Паралельні завантаження можуть призвести до обмеження швидкості",
-  "@optionsConcurrentWarning": {
-    "description": "Warning about rate limits"
-  },
   "optionsExtensionStore": "Репозиторій розширень",
   "@optionsExtensionStore": {
     "description": "Show/hide store tab"

lib/l10n/arb/app_zh.arb

@@ -182,27 +182,6 @@
   "@optionsMaxQualityCoverSubtitle": {
     "description": "Subtitle for max quality cover"
   },
-  "optionsConcurrentDownloads": "Concurrent Downloads",
-  "@optionsConcurrentDownloads": {
-    "description": "Number of parallel downloads"
-  },
-  "optionsConcurrentSequential": "Sequential (1 at a time)",
-  "@optionsConcurrentSequential": {
-    "description": "Download one at a time"
-  },
-  "optionsConcurrentParallel": "{count} parallel downloads",
-  "@optionsConcurrentParallel": {
-    "description": "Multiple parallel downloads",
-    "placeholders": {
-      "count": {
-        "type": "int"
-      }
-    }
-  },
-  "optionsConcurrentWarning": "Parallel downloads may trigger rate limiting",
-  "@optionsConcurrentWarning": {
-    "description": "Warning about rate limits"
-  },
   "optionsExtensionStore": "Extension Store",
   "@optionsExtensionStore": {
     "description": "Show/hide store tab"

lib/l10n/arb/app_zh_CN.arb

@@ -250,27 +250,6 @@
   "@optionsArtistTagModeSplitVorbisSubtitle": {
     "description": "Subtitle for split Vorbis artist tag mode"
   },
-  "optionsConcurrentDownloads": "并行下载数",
-  "@optionsConcurrentDownloads": {
-    "description": "Number of parallel downloads"
-  },
-  "optionsConcurrentSequential": "按顺序下载（一次一首）",
-  "@optionsConcurrentSequential": {
-    "description": "Download one at a time"
-  },
-  "optionsConcurrentParallel": "同时下载 {count} 首",
-  "@optionsConcurrentParallel": {
-    "description": "Multiple parallel downloads",
-    "placeholders": {
-      "count": {
-        "type": "int"
-      }
-    }
-  },
-  "optionsConcurrentWarning": "并行下载可能会触发速率限制",
-  "@optionsConcurrentWarning": {
-    "description": "Warning about rate limits"
-  },
   "optionsExtensionStore": "Extension Repo",
   "@optionsExtensionStore": {
     "description": "Show/hide store tab"

lib/l10n/arb/app_zh_TW.arb

@@ -250,27 +250,6 @@
   "@optionsArtistTagModeSplitVorbisSubtitle": {
     "description": "Subtitle for split Vorbis artist tag mode"
   },
-  "optionsConcurrentDownloads": "Concurrent Downloads",
-  "@optionsConcurrentDownloads": {
-    "description": "Number of parallel downloads"
-  },
-  "optionsConcurrentSequential": "Sequential (1 at a time)",
-  "@optionsConcurrentSequential": {
-    "description": "Download one at a time"
-  },
-  "optionsConcurrentParallel": "{count} parallel downloads",
-  "@optionsConcurrentParallel": {
-    "description": "Multiple parallel downloads",
-    "placeholders": {
-      "count": {
-        "type": "int"
-      }
-    }
-  },
-  "optionsConcurrentWarning": "Parallel downloads may trigger rate limiting",
-  "@optionsConcurrentWarning": {
-    "description": "Warning about rate limits"
-  },
   "optionsExtensionStore": "Extension Repo",
   "@optionsExtensionStore": {
     "description": "Show/hide store tab"