Small code fixes in API code

pub/api/classes/API_permissions.php

@@ -3,6 +3,7 @@
 namespace api\classes;
 
 use api\classes\API;
+use JetBrains\PhpStorm\NoReturn;
 
 require_once 'API.php';
 
@@ -27,6 +28,7 @@ class API_permissions extends API
         }
     }
 
+    #[NoReturn]
     public function createPermission()
     {
         # Check if permission slugify already exists
@@ -53,7 +55,7 @@ class API_permissions extends API
         $sql = "SELECT * FROM system_user_groups";
         $stmt = $this->conn->query($sql);
         while ($user_group = $stmt->fetch_assoc()) {
-            array_push($user_groups, $user_group);
+            $user_groups[] = $user_group;
         }
 
         # Update all the groups with the newly added permission