feat: quality picker with track info, update dialog redesign, finalizing notification fix

- Quality picker now shows track name, artist, and cover
- Tap to expand long track titles (icon only shows when truncated)
- Ripple effect follows rounded corners including drag handle
- Update dialog redesigned with Material Expressive 3 style
- Fixed update notification stuck at 100% after download complete
- Ask before download now enabled by default
- Finalizing notification for multi-progress polling

lib/models/settings.g.dart

@@ -21,7 +21,7 @@ AppSettings _$AppSettingsFromJson(Map<String, dynamic> json) => AppSettings(
   folderOrganization: json['folderOrganization'] as String? ?? 'none',
   convertLyricsToRomaji: json['convertLyricsToRomaji'] as bool? ?? false,
   historyViewMode: json['historyViewMode'] as String? ?? 'grid',
-  askQualityBeforeDownload: json['askQualityBeforeDownload'] as bool? ?? false,
+  askQualityBeforeDownload: json['askQualityBeforeDownload'] as bool? ?? true,
 );
 
 Map<String, dynamic> _$AppSettingsToJson(AppSettings instance) =>