Adds a webauthn error message concern for human friendly UX

Related to #562163

What does this MR do and why?

What?

• Adds webauthn error message conern
• Makes the passkey services use this concern
• WebAuthn service update is here

Why?

• Makes webauthn error human-readable

How to set up and validate locally

You can view the disparate human-readable error messages from the webauthn gem.

• spec/services/authn/passkey/register_service_spec.rb

      it 'returns a Service.error' do
        expect(register_service).to be_a(ServiceResponse)
        expect(register_service).to be_error
        puts "service message #{register_service.message}"
        expect(register_service.message).to be_present
      end

• spec/services/authn/passkey/authenticate_service_spec.rb

      it 'returns a Service.error' do
        expect(register_service).to be_a(ServiceResponse)
        expect(register_service).to be_error
        puts "service message #{authenticate_service.message}" 
        expect(register_service.message).to be_present
      end

MR acceptance checklist

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