Support passkey or webauthn login

[iflamed]

Feature Description
Passkeys login is the future passwordless way to auth user.

Describe the solution you'd like

Should like this project: https://github.com/teamhanko/hanko

Describe alternatives you've considered
https://github.com/teamhanko/hanko

Additional context
None

[lakhansamani]

Thanks @iflamed I will start working on this feature from August :-)

[itpropro]

Great feature suggestion. I am not good enough in Go, yet to support with a PR, but I was told that this library is a good starting point for Passkey integration: https://github.com/go-webauthn/webauthn.

[lakhansamani]

Implemented — full passkey/WebAuthn primary login, including discoverable (usernameless) login. Backend landed in #671, MFA-integration hardening in #685 and #686.

[iflamed]

Thanks for your hard working.