fix: no sound and vibration for push notifications (MESSENGER-7257)

RiotNSE/NotificationService.swift

@@ -471,6 +471,10 @@ class NotificationService: UNNotificationServiceExtension {
             return
         }
         
+        // BWI: #7257 fix no sound / vibration after pentest changes. Set default sound as backup for missing push rules
+        content.sound = .default
+        // BWI #7257 END
+        
         finishProcessing(forEventId: eventId, withContent: content)
     }