Auth UI showing IDP selection for single provider (Phone) #2227
Description
After updating v9.0.0, using Firebase UI (Auth) is showing authentication provider selection even when you only specify single provider. This is not the case on previous version of this library, when you only provide AuthUI.IdpConfig.PhoneBuilder() it will directly launch the PhoneActivity. Such behavior change was not mentioned in the release note, not to mention the still broken UI for edge-to-edge on Android 16.
