Update fields.html.twig

Author: alexndlm

Resources/views/Form/fields.html.twig

@@ -6,6 +6,7 @@
     'data-ajax--delay': delay,
     'data-ajax--data-type': "json",
     'data-language' :language,
+    'data-theme' :theme,
     'data-minimum-input-length': minimum_input_length,
     'data-placeholder': placeholder|trans({}, translation_domain),
     'data-page-limit': page_limit,