部分界面逻辑调整：播放界面默认最高优先级，其次是独立的miniplayerbar

lib/pages/home_page.dart

@@ -4,7 +4,6 @@ import 'package:provider/provider.dart';
 import '../services/audio_service.dart';
 import '../services/webdav_service.dart';
 import '../services/playback_service.dart';
-import '../widgets/mini_player_bar.dart';
 import '../widgets/magnetic_scroll_physics.dart';
 import 'webdav_setup_page.dart';
 import 'webdav_file_list_page.dart';