Display: Fix class for button icon marked as disabled

src/CoreBundle/Resources/views/LearnPath/list.html.twig

@@ -379,7 +379,7 @@
                                                 {% else %}
                                                     <a href="{{ 'lp_controller.php?' ~ course_url_params ~ '&action=move_down_category&id=' ~ lp_data.category.iid }}"
                                                        title="{{ "Move"|trans }}">
-                                                        <i class="mdi-arrow-down-bold mdi ch-tool-icon-disabled" style="font-size: 22px; width: 22px; height: 22px;" aria-hidden="true" title="{{ "Move"|trans }}"></i>
+                                                        <i class="mdi-arrow-down-bold mdi ch-tool-icon" style="font-size: 22px; width: 22px; height: 22px;" aria-hidden="true" title="{{ "Move"|trans }}"></i>
                                                     </a>
                                                 {% endif %}
                                             {% endif %}