Polish up Passkey interface

- Fix indentation
- Split awkward initializer into separate methods
- Rename credentials to passkeys
- Simplify authenticator registry loading
- Flatten nested errors under ActionPack::WebAuthn
- Set passkey current params only requests that use it
- Inline anemic methods
- Replace custom validation with ActiveModel::Validation
- Rename identity to holder in Passkey
- Rename credentials to passkeys in JS
- Extract framework library out of controllers
- Pass params hashes down to ActionPack
- Attempt to simplify public interface
- Push data decoding down to the classes representing the data
- Introduce has_passkeys
- Add CBOR bigint support
- Rename ActionPack::WebAuthn::Passkey to ActionPack::Passkey
- Add create_passkey_button helper
- Rename public-key to creation-options
- Add sign_in_with_passkey_button helper
- Dispatch events for the whole Passkey lifecycle
- Add ED25519 support
- Prevent crash on missing meta tag
- Validate resident key options
- Don't clobber existing ActionPack config options
- Validate cryptographic params
- Move CurrentWebAuthnRequest into ActionPack::Passkey
- Use ActiveModel::Attributes for Options objects
- Implement expiring challanges
- Add lifecycle events
- Extract param helpers into Request
- Add passkey_creation_options and passkey_request_options helpers
- Add create_passkey_challenge to make it easier to override the create method if needed
- Prefix all view helpers with passkey_
- Auto-include ActionPack::Passkey::Holder
- Make the passkey challange url configurable
- Add a reminder about Passkeys to the magic link email

app/assets/stylesheets/credentials.css

@@ -31,4 +31,13 @@
     margin-inline-start: auto;
     opacity: 0;
   }
+
+  [data-passkey-errors] [data-passkey-error] {
+    display: none;
+  }
+
+  [data-passkey-errors][data-passkey-error-state="error"] [data-passkey-error="error"],
+  [data-passkey-errors][data-passkey-error-state="cancelled"] [data-passkey-error="cancelled"] {
+    display: block;
+  }
 }