Apply GitLab UI button styles to buttons in ee/app/views/subscriptions/groups directory

changelogs/unreleased/231126-yo-gitlab-ui.yml

+---
+title: Apply GitLab UI button styles to buttons in ee/app/views/subscriptions/groups
+  directory
+merge_request: 51784
+author: Yogi (@yo)
+type: other

ee/app/views/subscriptions/groups/edit.html.haml

@@ -47,5 +47,5 @@
             = render 'shared/visibility_level', f: f, visibility_level: default_group_visibility, can_change_visibility_level: true, form_model: @group, with_label: false
         .row
           .form-group.col-sm-12.mb-0
-            = button_tag class: %w[btn btn-success w-100] do
+            = button_tag class: %w[btn gl-button btn-success gl-w-full!] do
               = _('Get started')