fix Extra networks tree show / edit (#1973)

Fix 'Show internal metadata' and 'Edit metadata' buttons when used from treeview. Issue seems like an oversight from an upstream change to handle filenames with an apostrophe.
#1244

html/extra-networks-tree-button.html

@@ -2,6 +2,7 @@
 <div class="tree-list-content {subclass}"
     type="button"
     onclick="extraNetworksTreeOnClick(event, '{tabname}', '{extra_networks_tabname}');{onclick_extra}"
+    data-name="{action_list_item_label}" 
     data-path="{data_path}"
     data-hash="{data_hash}"
 >
@@ -20,4 +21,4 @@
     <span class="tree-list-item-action tree-list-item-action--trailing">
         {action_list_item_action_trailing}
     </span>
-</div>
+</div>