"Sign in with Passkey" Integration in Firebase Auth

[skavinvarnan]

As Passkey is steadily gaining traction and has already gained official support from Google Identity, it would be highly beneficial to users if we could incorporate "Sign in with Passkey" as an official integration for Firebase Auth.

[cbenhagen]

Relevant links:
https://firebase.uservoice.com/forums/948424-general/suggestions/46647016-support-authentication-with-passkeys
https://issuetracker.google.com/issues/289237739

Please star the issue and hit the +1 button but comment only if you have more information to add. Thanks ;)

[utamori]

Finally coming !
https://firebase.uservoice.com/forums/948424-general/suggestions/46647016-support-authentication-with-passkeys

[cbenhagen]

Issue for the Passkey preview support: #17201