fix #8393 -- do not close the pop-up video chat window automatically even if the file/project that launched it is closed

Author: williamstein

src/packages/frontend/chat/video/video-chat.ts

@@ -25,7 +25,7 @@ export class VideoChat {
   }
 
   close = () => {
-    this.closeVideoChatWindow();
+    // this.closeVideoChatWindow();
     delete this.intervalId;
   };