Resource list toolbar renders orphan list item

[jkva]

The template renders the following, which is an orphaned list item, not contained within an ul or ol element.

<li class="toolbar-item field">
   <a class="button" href="/organizations/1-acme-museum/resources/new">Add Resource</a>
   <div class="dropdown">
      <button class="dropdown-toggle button button--narrow" aria-expanded="false" data-bs-toggle="dropdown" type="button"><i aria-hidden="true" class="icon-chevron-down-outline"></i></button>
      <ul class="dropdown-menu dropdown-menu-end">
         <li class="dropdown-item dropdown-item--has-link"><a href="/organizations/1-acme-museum/imports/new"><span>Import Resources</span><i aria-hidden="true" class="icon-cloud-upload-outline"></i></a></li>
      </ul>
   </div>
</li>