/**
  * Boot the application events.
  *
  * @return void
  */
 public function boot()
 {
     $this->registerConfig();
     $this->registerTranslations();
     $this->registerViews();
     User::observe(new UserObserver());
     Role::observe(new RoleObserver());
     $this->setMenu();
     $this->registerWidget();
 }