refactor(shop-coupon): migrate admin module to DI and release 0.266

admin/templates/layouts/subpages-list.php

@@ -3,7 +3,9 @@
     <? foreach ( $this -> pages as $page ):?>
       <li id="list_<?= $page['id'];?>" idk="<?= $page['id'];?>" class="list_<?= $page['id'];?>" menu="<?= $page['menu_id'];?>">
         <div class="content <?= $this -> step < 2 ? $tmp = 'content_page' : $tmp = 'content_page_last_level';?>" <? if ( !$page['status'] ) echo 'style="color: #cc0000;"';?>>
-          <span class="disclose"><span></span></span>
+          <button type="button" class="disclose layout-tree-toggle" aria-expanded="false" title="Rozwin / zwin">
+            <i class="fa fa-caret-right"></i>
+          </button>
           <input type="checkbox" class="g-checkbox" name="pages[]" value="<?= $page['id'];?>" <? if ( is_array( $this -> layout_pages ) and in_array( $page['id'], $this -> layout_pages ) ):?>checked="checked"<? endif;?> /><?= $page['title'];?>
         </div>
         <?