tested the following cases:
- fresh eth wallet with enableNewRegistrationMode
- was navigated to the new registration wizard
- existing account with enableNewRegistrationMode
- was logged in
- fresh eth wallet with !enableNewRegistrationMode
- was registered with identity service
- existing account with !enableNewRegistrationMode
- was logged in
handling reserved users will be tackled in https://linear.app/comm/issue/ENG-4033/update-clients-to-try-new-registration-after-failed-login-due-to