Update UI to match look-n-feel of current admin

Solidus admin v4.4 does not use icon links or delete buttons

app/overrides/spree/admin/shared/_order_submenu/add_digital_versions_to_admin_product_tabs.html.erb.deface

@@ -1,7 +1,7 @@
 <!-- insert_bottom "[data-hook='admin_order_tabs']" -->
 <% if can?(:update, @order) && @order.digital? %>
   <li>
-  <%= link_to_with_icon 'icon-cloud', I18n.t('spree.digitals.reset_downloads'), reset_digitals_admin_order_url(@order) %>
+  <%= link_to I18n.t('spree.digitals.reset_downloads'), reset_digitals_admin_order_url(@order) %>
   </li>
 <% end %>
 

app/overrides/spree/admin/shared/_product_tabs/add_digital_versions_to_admin_product_tabs.html.erb.deface

@@ -1,5 +1,5 @@
 <!-- insert_bottom "[data-hook='admin_product_tabs'], #admin_product_tabs[data-hook]" -->
 
-<li<%= ' class=\"active\"' if current == 'Digital Versions' %>>
-  <%= link_to_with_icon 'cloud', I18n.t('spree.digitals.digital_versions'), admin_product_digitals_path(@product) %>
-</li>
+<%= content_tag :li, class: ('active' if current == 'Digital Versions') do %>
+  <%= link_to t('spree.digitals.digital_versions'), admin_product_digitals_path(@product) %>
+<% end if can?(:admin, Spree::Digital) %>

app/views/spree/admin/digitals/_form.html.erb

@@ -18,7 +18,7 @@
                 <td><%= render digital %></td>
                 <td class="actions text-right">
                   <% if can?(:destroy, Spree::Digital) %>
-                    <%= link_to_with_icon 'delete', I18n.t('spree.digitals.delete_file'), admin_product_digital_url(@product, digital), data: {confirm: I18n.t('spree.digitals.delete_file_confirmation', filename: digital.attachment_file_name)}, method: :delete, class: 'btn btn-danger btn-sm delete-resource' %>
+                    <%= link_to_delete nil, url: admin_product_digital_url(@product, digital), no_text: true, confirm: I18n.t('spree.digitals.delete_file_confirmation', filename: digital.attachment_file_name) %>
                   <% end %>
                 </td>
               </tr>