message: Fix call to stop()
diff: @@ -485,7 +485,7 @@ function _clearStorage() {
  */
  export function stopMatrixClient() {
  Notifier.stop();
  - UserActivity.stop();
  + UserActivity.sharedInstance().stop();
  Presence.stop();
  ActiveWidgetStore.stop();
  if (DMRoomMap.shared()) DMRoomMap.shared().stop();
  