fix: 返回过快时主页异常开始播放

lib/pages/video/detail/view.dart

@@ -291,6 +291,7 @@ class _VideoDetailPageState extends State<VideoDetailPage>
   @override
   // 返回当前页面时
   void didPopNext() async {
+    if (!Get.isRegistered<VideoDetailController>()) return;
     isShowing = true;
     if (mounted) {
       setState(() => {});