fix |> 直播频道上滑加载缺少loading问题修复

@@ -350,7 +350,7 @@ export struct VideoChannelPage {
               autoRefresh: this.autoRefresh,
               isMourning: this.GrayManage.get().isVideoMourning(`${item.channelId}`),
               bottomNavi:BottomNavi.VIDEO
-            }).backgroundColor(Color.White)
+            }).backgroundColor(Color.White).height('90%')
           }
 
         }