Merge branch 'vs/pass-blank-strings-to-dataset-signu-restrictions' into 'master'

Pass blank strings to dataset for the signup restrictions app in adin

See merge request gitlab-org/gitlab!84343

app/assets/javascripts/pages/admin/application_settings/signup_restrictions.js

@@ -23,6 +23,7 @@ export default function initSignupRestrictions(elementSelector = '#js-signup-for
 
   return new Vue({
     el,
+    name: 'SignupRestrictions',
     provide: {
       ...parsedDataset,
     },

app/views/admin/application_settings/_signup.html.haml

@@ -16,6 +16,6 @@
   domain_denylist_raw: @application_setting.domain_denylist_raw,
   email_restrictions_enabled: @application_setting[:email_restrictions_enabled].to_s,
   supported_syntax_link_url: 'https://github.com/google/re2/wiki/Syntax',
-  email_restrictions: @application_setting.email_restrictions,
-  after_sign_up_text: @application_setting[:after_sign_up_text],
+  email_restrictions: @application_setting.email_restrictions.to_s,
+  after_sign_up_text: @application_setting[:after_sign_up_text].to_s,
   pending_user_count: pending_user_count } }