Updated User Roles to use a enum.

src/Enum/UserRoleEnum.php

@@ -0,0 +1,11 @@
+<?php
+
+namespace App\Enum;
+
+
+enum UserRoleEnum: string
+{
+    case ROLE_USER = 'ROLE_USER';
+    case ROLE_ADMIN = 'ROLE_ADMIN';
+    case ROLE_SUPERADMIN = 'ROLE_SUPERADMIN';
+}