Fix minor issues in User entity example: unused imports and missing use statement (#2173)

- Removed unused `ApiFilter` and `ApiProperty` imports from the User entity example
- Added missing `use App\Entity\User;` in the UserPasswordHasher processor

These small corrections improve clarity and prevent potential confusion or errors when copying the example as-is. The goal is to make the official documentation more accurate and beginner-friendly.

Author: kdefarge

symfony/user.md

@@ -12,8 +12,6 @@ You can follow the [official Symfony Documentation](https://symfony.com/doc/curr
 
 namespace App\Entity;
 
-use ApiPlatform\Metadata\ApiFilter;
-use ApiPlatform\Metadata\ApiProperty;
 use ApiPlatform\Metadata\ApiResource;
 use ApiPlatform\Metadata\Delete;
 use ApiPlatform\Metadata\Get;
@@ -231,6 +229,7 @@ namespace App\State;
 
 use ApiPlatform\Metadata\Operation;
 use ApiPlatform\State\ProcessorInterface;
+use App\Entity\User;
 use Symfony\Component\PasswordHasher\Hasher\UserPasswordHasherInterface;
 
 /**