change user_name still used as login and add display_name for dashboard view instead of username on login

components/auth/LoginForm.tsx

@@ -30,13 +30,13 @@ const LoginForm: React.FC = () => {
         </div>
       )}
       <div>
-        <label htmlFor="user_login" className="block text-sm font-medium text-gray-700">
+        <label htmlFor="user_name" className="block text-sm font-medium text-gray-700">
           Login
         </label>
         <div className="mt-1">
           <input
-            id="user_login"
-            name="user_login"
+            id="user_name"
+            name="user_name"
             type="text"
             autoComplete="username"
             required