Polish SAML SSO configuration page
With all feature flags enabled, the current group SAML SSO configuration page looks like this:
This looks a bit messy. We should:
- Group read-only fields together. They look too similar to input fields where the user needs to configure something.
- Clean up the toggles.
- Move the input fields to a new "Settings" section. Move this to the bottom of the page.
- Use the toggle slider for the "SSO enforcement" setting as well as the SAML SSO toggle setting.