Apply GitLab UI button styles to buttons in ee/app/views/admin/application_settings directory

Instructions

For instructions about how to apply GitLab UI button styles to the button instances on these templates, see the epic &4001 (closed).

Files in directory with buttons that needs migration

• ee/app/views/admin/application_settings/_custom_templates_form.html.haml
• ee/app/views/admin/application_settings/_ee_network_settings.haml
• ee/app/views/admin/application_settings/_elasticsearch_form.html.haml
• ee/app/views/admin/application_settings/_package_registry.haml
• ee/app/views/admin/application_settings/_pseudonymizer_settings.html.haml
• ee/app/views/admin/application_settings/_required_instance_ci_setting.html.haml
• ee/app/views/admin/application_settings/_seat_link_form.html.haml
• ee/app/views/admin/application_settings/_seat_link_setting.html.haml
• ee/app/views/admin/application_settings/_slack.html.haml
• ee/app/views/admin/application_settings/_templates.html.haml