refs #15971 [fid] mark required fields in initial registration form

themes/fid/scss/compiled.scss

@@ -68,6 +68,12 @@
   }
 }
 
+.fid-user-init-form {
+  label[data-required]::after {
+    content: ' *';
+  }
+}
+
 .registration {
   input[type="checkbox"] {
     display: inline-flex;

themes/fid/templates/fid/user/init.phtml

@@ -47,7 +47,7 @@ $formElementErrors->setTranslator($translator);
 $form = $this->form;
 $form->setAttribute('method', 'post');
 $form->setAttribute('action', $this->url('fid/user/init'));
-$form->setAttribute('class', 'registration');
+$form->setAttribute('class', 'fid-user-init-form registration');
 $form->prepare();
 
 $this->headTitle($this->translate("fid::user_init_form_title"));
@@ -148,4 +148,4 @@ $elemSubmit->setAttributes(['class' => 'btn btn-primary']);
     </a>
     <?= $this->formElement($elemSubmit) ?>
 </div>
-<?= $this->form()->closeTag($form) ?>
+<?= $this->form()->closeTag($form) ?>
\ No newline at end of file