feat: use default-app behavior in packaged apps (#16310)

Unify the behavior between default app and packaged apps:
- create default application menu unless the app has one
- default window-all-closed handling unless the app handles the event

lib/browser/api/menu.js

@@ -145,6 +145,8 @@ Menu.setApplicationMenu = function (menu) {
   }
 
   applicationMenu = menu
+  v8Util.setHiddenValue(global, 'applicationMenuSet', true)
+
   if (process.platform === 'darwin') {
     if (!menu) return
     menu._callMenuWillShow()