updateUser method
Updates the session user's details with those from another DescopeUser value.
final userResponse = await Descope.auth.me(session.refreshJwt);
session.updateUser(userResponse);
Important: It's recommended to use a DescopeSessionManager
to manage sessions,
in which case you should call updateUser on the manager itself instead
to ensure that the updated user details are saved.
Implementation
void updateUser(DescopeUser descopeUser) {
_user = descopeUser;
}