optionAuthenticate method
Executes the menu option to create a new channel
Implementation
Future<Response> optionAuthenticate() async {
clear();
print('Authenticate:');
try {
askEmail();
askPassword();
var response = await _userUC.authenticate(_email, _password);
_jwt = response.body;
_response = '$_jwt';
return response;
} catch (e) {
_response = e.toString();
throw ('authenticate');
}
}