public MainViewModel()
{
EnsureQuizCanBeLoaded();
_welcomePage = new WelcomePage(this);
_allocationGamePage = new AllocationGamePage(this);
_performanceGamePage = new PerformanceGamePage(this);
_endPage = new EndPage(this);
_allocationGamePage.NextPage = _endPage;
_performanceGamePage.NextPage = _endPage;
_endPage.NextPage = _welcomePage;
CurrentPage = _welcomePage;
}