Improve returned error code

src/controllers/login_controller.rs

@@ -75,7 +75,7 @@ pub async fn login_route(
         .await.unwrap();
 
     if failed_attempts > MAX_FAILED_LOGIN_ATTEMPTS {
-        return HttpResponse::InternalServerError().body(
+        return HttpResponse::TooManyRequests().body(
             FatalErrorPage {
                 message: "Too many failed login attempts, please try again later!"
             }.render().unwrap()