一堆乱七八糟的修改

播放页面增加桌面版

lib/features/playlist/playlist_provider.dart

@@ -0,0 +1,18 @@
+import 'package:riverpod_annotation/riverpod_annotation.dart';
+import 'package:shelfsdk/audiobookshelf_api.dart';
+import 'package:vaani/features/playlist/playlist.dart';
+
+part 'playlist_provider.g.dart';
+
+@riverpod
+class Playlist extends _$Playlist {
+  @override
+  AudiobookPlaylist build() {
+    return AudiobookPlaylist();
+  }
+
+  void add(BookExpanded item) {
+    state.add(item);
+    ref.notifyListeners();
+  }
+}