public void SwipeLeft()
    {
        CountryPoolModel countryPoolModel = app.model.CountryPoolModel;

        if (countryPoolModel.CurrentCountryIndex < countryPoolModel.CountriesModel.Count - 2)
        {
            countryPoolModel.CurrentCountryIndex++;
            UpdateCountryPool();
        }
    }
    public void SwipeRight()
    {
        CountryPoolModel countryPoolModel = app.model.CountryPoolModel;

        if (countryPoolModel.CurrentCountryIndex > 1)
        {
            countryPoolModel.CurrentCountryIndex--;
            UpdateCountryPool();
        }
    }