fix(filmstrip): JS error when the ringoverlay is shown

modules/UI/UI.js

@@ -1400,13 +1400,13 @@ UI.setMicrophoneButtonEnabled = function (enabled) {
 
 UI.showRingOverlay = function () {
     RingOverlay.show(APP.tokenData.callee, interfaceConfig.DISABLE_RINGING);
-    FilmStrip.toggleFilmStrip(false);
+    FilmStrip.toggleFilmStrip(false, false);
 };
 
 UI.hideRingOverLay = function () {
     if (!RingOverlay.hide())
         return;
-    FilmStrip.toggleFilmStrip(true);
+    FilmStrip.toggleFilmStrip(true, false);
 };
 
 /**

modules/UI/videolayout/FilmStrip.js

@@ -114,20 +114,24 @@ const FilmStrip = {
      * of the film strip. If not specified, the visibility will be flipped
      * (i.e. toggled); otherwise, the visibility will be set to the specified
      * value.
+     * @param {Boolean} sendAnalytics - if true analytics event will be send.
+     * default: true.
      *
      * Note:
      * This method shouldn't be executed directly to hide the filmstrip.
      * It's important to hide the filmstrip with UI.toggleFilmstrip in order
      * to correctly resize the video area.
      */
-    toggleFilmStrip(visible) {
+    toggleFilmStrip(visible, sendAnalytics = true) {
         let isVisibleDefined = typeof visible === 'boolean';
         if (!isVisibleDefined) {
             visible = this.isFilmStripVisible();
         } else if (this.isFilmStripVisible() === visible) {
             return;
         }
-        JitsiMeetJS.analytics.sendEvent('toolbar.filmstrip.toggled');
+        if(sendAnalytics) {
+            JitsiMeetJS.analytics.sendEvent('toolbar.filmstrip.toggled');
+        }
         this.filmStrip.toggleClass("hidden");
 
         if (!visible) {