feat(player): continue playback with Library autoplay

lib/providers/music_player_provider.dart

@@ -244,6 +244,7 @@ PlayableMedia playableFromHistory(DownloadHistoryItem item) {
     bitrate: item.bitrate,
     format: item.format,
     explicit: item.explicit,
+    genre: item.genre,
   );
 }
 
@@ -270,5 +271,6 @@ PlayableMedia playableFromLocal(LocalLibraryItem item) {
     bitrate: item.bitrate,
     format: item.format,
     explicit: item.explicit,
+    genre: item.genre,
   );
 }

lib/providers/settings_provider.dart

@@ -556,6 +556,11 @@ class SettingsNotifier extends Notifier<AppSettings> {
     _saveSettings();
   }
 
+  void setAutoplay(bool enabled) {
+    state = state.copyWith(autoplay: enabled);
+    _saveSettings();
+  }
+
   void setEmbedMetadata(bool enabled) {
     state = state.copyWith(embedMetadata: enabled);
     _saveSettings();