Fix PHP CS Fixer: add blank line after class constants

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

src/Controller/AccountController.php

@@ -20,6 +20,7 @@ class AccountController extends AbstractController
 {
     private const BREADCRUMB_HOME = ['name' => 'Accueil', 'url' => '/'];
     private const BREADCRUMB_ACCOUNT = ['name' => 'Mon compte', 'url' => '/mon-compte'];
+
     #[Route('/mon-compte', name: 'app_account')]
     public function index(Request $request, StripeService $stripeService, EntityManagerInterface $em): Response
     {