Quiz results markup improvements

Automatically closed - issue fixed for 2 weeks with no activity.

Hi.
This has broken ajax in 'modules/ajax_quiz/ajax_quiz.module' :

    // Add ajax to each submit button.
    $nav_children = Element::children($form['navigation']);
    foreach ($nav_children as $nav_child) {
      if (isset($form['navigation'][$nav_child]['#type']) && $form['navigation'][$nav_child]['#type'] == 'submit') {
        $form['navigation'][$nav_child]['#ajax'] = $ajax;
      }
    }