fix bug user

src/Entity/User.php

@@ -9,9 +9,12 @@ use Doctrine\DBAL\Types\Types;
 use Doctrine\ORM\Mapping as ORM;
 use Symfony\Component\Security\Core\User\PasswordAuthenticatedUserInterface;
 use Symfony\Component\Security\Core\User\UserInterface;
+use Symfony\Bridge\Doctrine\Validator\Constraints\UniqueEntity;
+use Symfony\Component\Validator\Constraints as Assert;
 
-#[ORM\Entity(repositoryClass: UserRepository::class)]
 #[ORM\Table(name: '`user`')]
+#[ORM\Entity(repositoryClass: UserRepository::class)]
+#[UniqueEntity(fields: ['email'], message: 'There is already an account with this email.')]
 class User implements UserInterface, PasswordAuthenticatedUserInterface
 {
     #[ORM\Id]
@@ -20,6 +23,7 @@ class User implements UserInterface, PasswordAuthenticatedUserInterface
     private ?int $id = null;
 
     #[ORM\Column(length: 180, unique: true)]
+    #[Assert\Email]
     private ?string $email = null;
 
     #[ORM\Column]