e.g.
--- at /etc/ente/pkg/api/user.go:352 (UserHandler.FinishPasskeyAuthenticationCeremony) ---
--- at /etc/ente/pkg/repo/passkey/passkey.go:395 (Repository.FinishAuthentication) ---
Caused by: Error validating the assertion signature: \u003cnil\u003e
Safari just doesn't recognize the Yubikey (macOS/iOS, NFC/USB, doesn't matter)
if display name is set to the empty string. Safari's long description doesn't
care to mention this requirement:
https://webkit.org/blog/11312/meet-face-id-and-touch-id-for-the-web/
Tested on localhost with Safari macOS. Will test on iOS post deployment.
