feat: Adds interface config to hide lobby button. (#7619)

* feat: Adds interface config to hide lobby button.

* squash: Moves the config to config.js and add it to mobile.

react/features/connection-stats/components/ConnectionStatsTable.js

@@ -226,7 +226,7 @@ class ConnectionStatsTable extends Component<Props> {
 
     /**
      * Creates a a table row as a ReactElement for displaying codec, if present.
-     * This will typically be something like "Codecs (A/V): opus, vp8".
+     * This will typically be something like "Codecs (A/V): Opus, vp8".
      *
      * @private
      * @returns {ReactElement}