old_contents: import Modal from 'flarum/components/Modal';
  import avatar from 'flarum/helpers/avatar';
  import username from 'flarum/helpers/username';
  
  export default class PostLikesModal extends Modal {
    className() {
      return 'PostLikesModal Modal--small';
    }
  
    title() {
      return app.trans('likes.post_likes_modal_title');
    }
  
    content() {
      return (
        <div className="Modal-body">
          <ul className="PostLikesModal-list">
            {this.props.post.likes().map(user => (
              <li>
                <a href={app.route.user(user)} config={m.route}>
                  {avatar(user)} {' '}
                  {username(user)}
                </a>
              </li>
            ))}
          </ul>
        </div>
      );
    }
  }
  
new_contents: import Modal from 'flarum/components/Modal';
  import avatar from 'flarum/helpers/avatar';
  import username from 'flarum/helpers/username';
  
  export default class PostLikesModal extends Modal {
    className() {
      return 'PostLikesModal Modal--small';
    }
  
    title() {
      return app.trans('flarum-likes.forum.post_likes_modal_title');
    }
  
    content() {
      return (
        <div className="Modal-body">
          <ul className="PostLikesModal-list">
            {this.props.post.likes().map(user => (
              <li>
                <a href={app.route.user(user)} config={m.route}>
                  {avatar(user)} {' '}
                  {username(user)}
                </a>
              </li>
            ))}
          </ul>
        </div>
      );
    }
  }
  
subject: Update translation ID