style(theme): 客户端切换深色视觉风格

lib/pages/player/widgets/loading_progress_track.dart

@@ -2,13 +2,15 @@
 
 import 'package:flutter/material.dart';
 
+import '../../../core/theme/app_colors.dart';
+
 /// 播放未就绪时沿进度轨道循环移动的加载高光。
 class LoadingProgressTrack extends StatefulWidget {
   const LoadingProgressTrack({
     super.key = const Key('progress-loading'),
     required this.height,
-    this.trackColor = Colors.white24,
-    this.highlightColor = Colors.white,
+    this.trackColor = AppColors.inactiveTrack,
+    this.highlightColor = AppColors.onPrimary,
   });
 
   final double height;