Method setUpdateAvailableMenuVisibility

src/main/menu.ts:147–149

* Show or hide the "An update is available" status menu item. * * @param isVisible - Whether the item should be visible.

(isVisible: boolean)

   * @param isVisible - Whether the item should be visible.
   */
  setUpdateAvailableMenuVisibility(isVisible: boolean) {
    this.updateAvailableMenuItem.visible = isVisible;
  }

  /**
   * Show or hide the "Restart to install update" menu item.