Resolve "Polish SAML SSO configuration page"

What does this MR do?

Re-order the SAML SSO page.

before	after

Does this MR meet the acceptance criteria?

Conformity

• Changelog entry
• Code review guidelines
• Style guides
• Separation of EE specific content

How to test

You need to add the below to your config/gitlab.yml file

providers:
  - { name: 'group_saml' }

Enable the following feature flags in the Rails console (rails c):

• Feature.enable(:enforced_sso)
• Feature.enable(:group_scim)
• Feature.enable(:group_managed_accounts)

Then select a group -> hover settings -> select SAML SSO

Closes #11259 (closed)