deleteUser method
Implementation
Future<void> deleteUser(String password, [String? mfaToken, bool? mfaRecovery]) async {
final jwt = await getFreshJwt(_userIdentifier, password, mfaToken, mfaRecovery);
await Sentc.getApi().deleteUser(baseUrl: baseUrl, authToken: appToken, freshJwt: jwt);
return logOut();
}