restore custom registration message

app/javascript/flavours/glitch/styles/index.scss

@@ -18,6 +18,7 @@
 @import 'components/index';
 @import 'polls';
 @import 'about';
+@import 'monsterpit.about';
 @import 'tables';
 @import 'admin';
 @import 'accessibility';

app/presenters/instance_presenter.rb

@@ -2,6 +2,7 @@
 
 class InstancePresenter
   delegate(
+    :closed_registrations_message,
     :site_contact_email,
     :site_title,
     :site_short_description,

config/locales/en.yml

@@ -545,7 +545,7 @@ en:
       cas: CAS
       saml: SAML
     register: Sign up
-    registration_closed: "%{instance} is not accepting new members"
+    registration_closed: "Monsterpit registrations are currently closed."
     resend_confirmation: Resend confirmation instructions
     reset_password: Reset password
     security: Security