fix: 沉浸式视频播放，视频A播放，下滑或上滑切其它视频，再次上滑或下滑切换视频A，修改为重播

@@ -118,7 +118,7 @@ export struct DetailPlayShortVideoPage {
         if (!this.onlyWifiLoadVideo) {
           await this.playerController.pause()
         } else {
-          await this.playerController.play()
+          this.playerController.resetPlay()
           await this.playerController.startRenderFrame(() => {
             this.imageVisible = false
           })

@@ -29,7 +29,9 @@ export struct PlayerProgressView {
             this.showLoading = true
           }
           this.timer = setTimeout(() => {
+            if (this.playerController?.getPlayer()) {
               ToastUtils.shortToast('网络出小差了，请检查下网络')
+            }
           }, 10000)
         } else {
           clearTimeout(this.timer)