Fixed coding style.

src/Entity/Attachments/LabelAttachment.php

@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * This file is part of Part-DB (https://github.com/Part-DB/Part-DB-symfony).
  *
@@ -20,7 +23,6 @@
 
 namespace App\Entity\Attachments;
 
-
 use App\Entity\LabelSystem\LabelProfile;
 use Doctrine\ORM\Mapping as ORM;
 use Symfony\Bridge\Doctrine\Validator\Constraints\UniqueEntity;
@@ -41,4 +43,4 @@ class LabelAttachment extends Attachment
      * @ORM\JoinColumn(name="element_id", referencedColumnName="id", nullable=false, onDelete="CASCADE").
      */
     protected $element;
-}
+}