Refactor SSO Auth

[jan-tennert]

What kind of change does this PR introduce?

Feature

What is the current behavior?

You can sign in with SSO like this:

supabase.auth.signInWith(SSO.withDomain("domain"))

What is the new behavior?

This has been changed to match other auth providers:

supabase.auth.signInWith(SSO) {
    domain = "domain"
}