(mvc) expand standard form dialog to large

src/opnsense/mvc/app/views/layout_partials/base_dialog.volt

@@ -53,7 +53,7 @@ label           :   dialog label
 {% endfor %}
 
 <div class="modal fade" id="{{id}}" tabindex="-1" role="dialog" aria-labelledby="{{id}}Label" aria-hidden="true">
-    <div class="modal-dialog">
+    <div class="modal-dialog modal-lg">
         <div class="modal-content">
             <div class="modal-header">
                 <button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">&times;</span></button>