Fix jitsi popout URL

Needs the template variables filled in

Author: dbkr

src/components/views/elements/AppTile.js

@@ -592,7 +592,9 @@ export default class AppTile extends React.Component {
 
     _getPopoutUrl() {
         if (this.props.app.type === 'jitsi') {
-            return WidgetUtils.getLocalJitsiWrapperUrl({forLocalRender: false});
+            return this._templatedUrl(
+                WidgetUtils.getLocalJitsiWrapperUrl({forLocalRender: false}),
+            );
         } else {
             // use app.url, not state.widgetUrl, because we want the one without
             // the wURL params for the popped-out version.