ISTWCMS-6320: adding ical for events inside layout builder

uw_fdsu_theme_resp.theme

@@ -659,6 +659,12 @@ function uw_fdsu_theme_resp_preprocess_container(&$variables) {
         if ($node) {
           $variables['header_data'] = $uwNodeContent->getNodeContent($node, 'full', 'header');
           $variables['footer_data'] = $uwNodeContent->getNodeContent($node, 'full', 'footer');
+
+          // If this is an event, add the ical url so that it displays
+          // inside of layout builder.
+          if ($node->getType() == 'uw_ct_event') {
+            $variables['header_data']['ical'] = _uw_ct_event_get_ical_link($node->id());
+          }
         }
       }
     }