fix: URL action in data table list template (#1428)

Author: T4m

filer/templates/admin/filer/folder/directory_table_list.html

@@ -140,7 +140,6 @@
                             <td class="column-action">
                                 {% if file.canonical_url %}
                                     <a href="{{ file.canonical_url }}" rel="noopener noreferrer"
-                                       download="{{ file.original_filename }}"
                                        title="{% blocktrans with file.label as item_label %}Canonical url '{{ item_label }}'{% endblocktrans %}" class="action-button" target="_blank"><span class="fa fa-link filer-icon filer-icon-link"></span></a>
                                 {% endif %}
                                 <a href="{{ file.url }}" target="_blank" rel="noopener noreferrer"