Merge pull request #5510 from rubenk/add-roomname-to-title

Add room name to browser tab title

react/features/conference/components/web/Conference.js

      * @inheritdoc
      */
     componentDidMount() {
-        document.title = interfaceConfig.APP_NAME;
+        document.title = `${APP.conference.roomName} | ${interfaceConfig.APP_NAME}`;
         this._start();
     }