code: public function removeFavoriteAdAction(Ad $ad)
      {
          $customer = $this->getUser();
          if (!is_object($customer) || !$customer instanceof Customer) {
              return $this->redirectToRoute("miky_app_home_index");
          }
          $customer->removeFavoriteAd($ad);
          $this->get("miky_customer_manager")->updateUser($customer);
          return $this->redirectToRoute("miky_app_favorite_ads_list");
      }
docs: @return Response|RedirectResponse
  
  @throws AccessDeniedException