How do I change login failure error message?

I tried to change the text and position of the error message.
My Drupal version is 8.8.4

In the Drupal standard,
An error message is displayed above the username.
How can I change the position of this message? 

Now I want to display below the submit button. and If possible, it is best to control them in the twig template.

I also want to change this text, and although I can change it, But it looks like there is a problem.
I referred to the links these.

https://www.drupal.org/forum/support/post-installation/2013-10-21/customize-login-error-message
https://drupal.stackexchange.com/questions/89705/customize-login-error-message

and may code is below 
hook_form_alter：replacement(?) final validate

function THEME_form_alter(&$form, \Drupal\Core\Form\FormStateInterface $form_state, $form_id) {

  if ($form_id == 'user_login_form' ) {
   
    $final_validate_index = array_search('user_login_final_validate', $form['#validate']);
    if ($final_validate_index >= 0) {
       $form['#validate'][$final_validate_index] = 'THEME_user_login_form_validate';
    }
}

function THEME_user_login_form_validate(&$form, \Drupal\Core\Form\FormStateInterface $form_state) {

  $flood  = \Drupal::flood();
  $form_state->clearErrors();

  if (!$form_state->get('uid')) {

    // Always register an IP-based failed login event.
    $flood->register('user.failed_login_ip', \Drupal::config('ip_window'));

    // Register a per-user failed login event.
    if ($flood_control_user_identifier = $form_state->get('flood_control_user_identifier')) {

       $flood->register('user.failed_login_user',
                  \Drupal::config('user_window'), $flood_control_user_identifier);
    }

    if ($flood_control_triggered = $form_state->get('flood_control_triggered')) {
       if ($flood_control_triggered == 'user') {

           $form_state->setErrorByName('message',
                \Drupal::translation()->formatPlural(\Drupal::config('user_limit'),
                  'Sorry, there has been more than one failed login attempt for this account.' .
                  ' It is temporarily blocked. Try again later or <a href=":url">request a new password</a>.',
                  '!!Sorry, there have been more than :count failed login attempts for this account.' .
                  'It is temporarily blocked. Try again later or <a href=":url">request a new password</a>.',
                  )
                );
        } else {
           // We did not find a uid, so the limit is IP-based.
           $form_state->setErrorByName('message',
              t('Sorry, too many failed login attempts from your IP address. This IP address is temporarily blocked.'.
                ' Try again later or <a href=":url">request a new password</a>.')
              );
            }
        } else {
            $user_input = $form_state->getUserInput();
            $query      = isset($user_input['name']) ? array('name' => $user_input['name'],) : array();
Change here ->  $form_state->setErrorByName('message', t('hogehoge'));

            if (isset($user_input['name'])) {
                \Drupal::logger('user')->notice('Login attempt failed for %user.', array('%user' => $user_input['name']));
            } else {
                \Drupal::logger('user')->notice('Login attempt failed from ip.');
            }
        }
    } elseif ($flood_control_user_identifier = $form_state->get('flood_control_user_identifier')) {
        // Clear past failures for this user so as not to block a user who might
        // log in and out more than once in an hour.
        $flood->clear('user.failed_login_user', $flood_control_user_identifier);
    }
}

I thought I had replaced finalValidation. but the original finalValidation also seemed to be working.
Because the error message always displayed both the message I changed and the original.

Please teach me how is the right way as a drupal ?