ISTWCMS-5214: adding theming for opportunity nodes and fixing dates

src/Service/UWService.php

@@ -217,6 +217,7 @@ class UWService implements UWServiceInterface {
           'uw_ct_contact',
           'uw_ct_event',
           'uw_ct_news_item',
+          'uw_ct_opportunity',
           'uw_ct_profile',
           'uw_ct_web_page',
         ];