ADD: added new auth middleware and changed the roles value ind the jwt token to a array

frontend/src/pages/ViewEditPlayer.tsx

@@ -9,7 +9,7 @@ const ViewEditPlayer = () => {
   const { id } = useParams<{ id: string }>();
   const token = localStorage.getItem('token');
   const currentUser = token ? getUserFromToken(token) : null;
-  const isAdmin = currentUser?.role === 'admin';
+  const isAdmin = currentUser?.role?.includes('admin');
 
   const [player, setPlayer] = useState<User | null>(null);
   const [name, setName] = useState('');