feat: Adds sound alert notification for new messages on the widget (#3181)

* feat: Adds sound alert notification for new messages on the widget

* Review fixes

* uses absolute path

* Minor fixes

Co-authored-by: Muhsin Keloth <muhsinkeramam@gmail.com>

app/javascript/shared/helpers/AudioNotificationHelper.js

@@ -94,3 +94,7 @@ export const newMessageNotification = data => {
     showBadgeOnFavicon();
   }
 };
+
+export const playNewMessageNotificationInWidget = () => {
+  window.playAudioAlert();
+};