templates: add optional Series ID buttons to the patch list

If the user has turned on display of patch IDs, add clickable series ID
buttons inline with the series name.

Signed-off-by: Ross Burton <ross.burton@arm.com>

patchwork/templates/patchwork/partials/patch-list.html

@@ -192,6 +192,11 @@
         </td>
         <td>
 {% if patch.series %}
+{% if user.is_authenticated and user.profile.show_ids %}
+          <button type="button" class="btn btn-xs btn-copy" data-clipboard-text="{{ patch.series.id }}" title="Copy to Clipboard">
+            {{ patch.series.id }}
+          </button>
+{% endif %}
           <a href="?series={{patch.series.id}}">
             {{ patch.series|truncatechars:100 }}
           </a>