message: Try to close notification on all platforms which support it, not just electron
diff: @@ -155,7 +155,13 @@ export default abstract class BasePlatform {
  loudNotification(ev: Event, room: Object) {
  }
  +
  clearNotification(notif: Notification) {
  + // Some browsers don't support this, e.g Safari on iOS
  + // https://developer.mozilla.org/en-US/docs/Web/API/Notification/close
  + if (notif.close) {
  + notif.close();
  + }
  }
  /**
  