public async Task ExecuteLoginFacebookCommandAsync()
{
if (client == null || IsBusy)
return;
Settings.LoginAccount = LoginAccount.Facebook;
var track = Logger.Instance.TrackTime("LoginFacebook");
track?.Start();
IsLoggedIn = await LoginAsync(MobileServiceAuthenticationProvider.Facebook);
track?.Stop();
Logger.Instance.Track("LoginFacebook");
}