private void UpdateSignInState(bool signedIn)
{
SignInState.Value = signedIn ? SignInStates.SignedIn : SignInStates.NotSignedIn;
string userName = signedIn
? $"{_altitudeAngelService.CurrentUser.FirstName} {_altitudeAngelService.CurrentUser.LastName}"
: null;
SignInStatus = signedIn ? $"({userName}) CONNECTED" : "NOT CONNECTED";
}