fastadmin_tailored/addons/shop/view/default/common/menu.html

<div class="top-menu">
    <ul class="list-unstyled">
        {shop:catelist id="nav" type="top" condition="1=isnav"}
        <li class="{if $nav.has_nav_child}dropdown{/if}">
            <a href="{$nav.url|htmlentities}" {if $nav.has_nav_child}class="dropdown-toggle" data-toggle="dropdown"{/if}>
                <i class="{$nav.icon|htmlentities}"></i>
                <span>{$nav.name|htmlentities}</span>
                {if $nav.has_nav_child}
                <span class="indicator"><i class="fa fa-angle-right"></i></span>
                {/if}
            </a>
            {if $nav.has_nav_child}
            <div class="dropdown-menu">
                <div class="dropdown-menu-wrapper p-3">
                    <ul class="">
                        {shop:catelist id="sub" type="son" typeid="nav['id']" condition="1=isnav"}
                        <li><a href="{$sub.url|htmlentities}"><span>{$sub.name|htmlentities}</span></a></li>
                        {/shop:catelist}
                    </ul>
                </div>
            </div>
            {/if}
        </li>
        {/shop:catelist}
    </ul>
</div>