Refactor Symfony test configurations and add badge support

Reorganized test configurations by splitting `config.yml` into `common.yml` and added Twig template support. Introduced Webauthn authentication mechanism with related classes, functional tests, and templates to enhance security. This commit also includes tests for authenticated access and successful login handling.

Author: Spomky

tests/symfony/functional/Firewall/SecuredAreaTest.php

@@ -150,14 +150,7 @@ public function aUserCannotBeRegisteredAsTheUserAlreadyExists(): void
         ]);
 
         //Then
-        static::assertResponseIsSuccessful();
-        static::assertSame('{"success":true}', $client->getResponse()->getContent());
-        static::assertTrue($client->getRequest()->getSession()->has('_security_main'));
-
-        //And then
-        $client->request(Request::METHOD_GET, '/admin');
-        static::assertSame('["Hello admin"]', $client->getResponse()->getContent());
-        static::assertResponseIsSuccessful();
+        static::assertResponseRedirects('/login');
     }
 
     #[Test]