feat: put the access codes behind a feature flag

config/bundles.php

@@ -14,4 +14,5 @@ return [
     Symfony\Bundle\MakerBundle\MakerBundle::class => ['dev' => true],
     Symfony\UX\Icons\UXIconsBundle::class => ['all' => true],
     Knp\Bundle\PaginatorBundle\KnpPaginatorBundle::class => ['all' => true],
+    Flagception\Bundle\FlagceptionBundle\FlagceptionBundle::class => ['all' => true],
 ];