private void t_Tick(object sender, EventArgs e)
        {
            // Extragem diferenta de timp dintre momentul actual si cel in care a fost afisata intrebarea
            var difference = DateTime.Now.Subtract(start);
            _gameView.timer.Content = difference.ToString(@"mm\:ss");

            // Daca mai raman 5 secunde - timer-ul devine rosu
            // 30 secunde - timer-ul galben
            // > 30 secunde - timer-ul alb
            if (difference.Seconds > SecondsPerQuestion - 5)
                _gameView.timer.Foreground = Brushes.Red;
            else if (difference.Seconds > SecondsPerQuestion - 30)
                _gameView.timer.Foreground = Brushes.Yellow;
            else
                _gameView.timer.Foreground = Brushes.White;

            // Cazul in care expira timpul:
            if (difference > TimeSpan.FromSeconds(SecondsPerQuestion))
            {
                ellapsedTime.Stop();
                GameService.AddToEllapsedTime(DateTime.Now.Subtract(start));
                GameOver();
                return;
            }
        }