mod: 改善全屏与播放器更新体验，用listener代替等待时间

lib/pages/video/detail/controller.dart

@@ -163,6 +163,7 @@ class VideoDetailController extends GetxController
   /// 更新画质、音质
   /// TODO 继续进度播放
   updatePlayer() {
+    isShowCover.value = false;
     defaultST = plPlayerController.position.value;
     plPlayerController.removeListeners();
     plPlayerController.isBuffering.value = false;