Add @magic-sdk/pnp package for out-of-the-box login page UIs

[smithki]

@magic-sdk/pnp adds new optionality for developers to integrate Magic with an out-of-the-box login page UI. This is a work-in-progress package and has been marked "private": true for now.

[smithki]

🚀 PR was released in @magic-ext/oauth@0.9.1, @magic-ext/react-native-oauth@0.4.1, @magic-ext/webauthn@0.1.1, @magic-sdk/commons@2.0.6, @magic-sdk/pnp@0.1.1, @magic-sdk/provider@6.0.6, @magic-sdk/react-native@6.0.6, @magic-sdk/types@5.0.3, magic-sdk@6.0.6 🚀