moderation_note-8.x-1.0-beta3/moderation_note.install

<?php

/**
 * @file
 * Contains install routines for moderation_note.
 */

/**
 * Implements hook_install().
 */
function moderation_note_install() {
  $config = \Drupal::configFactory()->getEditable('system.mail');
  $interface = $config->get('interface');
  if (!isset($interface['moderation_note'])) {
    $interface['moderation_note'] = 'moderation_note';
  }
  $config->set('interface', $interface);
  $config->save();
}