Add form class to summary for hooks and form submission handler in contact.module

In the contact.module there are the following documentation comments.

/**
 * Implements hook_form_FORM_ID_alter().
 *
 * Add the enable personal contact form to an individual user's account page.
 *
 * @see \Drupal\user\ProfileForm::form()
 */

/**
 * Implements hook_form_FORM_ID_alter().
 *
 * Add the default personal contact setting on the user settings page.
 *
 * @see \Drupal\user\AccountSettingsForm
 */

/**
 * Form submission handler for user_admin_settings().
 *
 * @see contact_form_user_admin_settings_alter()
 */
function contact_form_user_admin_settings_submit($form, FormStateInterface $form_state) {
  \Drupal::configFactory()->getEditable('contact.settings')
    ->set('user_default_enabled', $form_state->getValue('contact_default_status'))
    ->save();
}

The description should say for which form the hook implementation or the form submission handler is, as the examples on Drupal API documentation standards for functions / Form-generating functions and Drupal API documentation standards for functions / Hook implementation show. Since form builders are now classes, the description cannot reference a function, which is no longer exist in Drupal 8+.