private void AddCardAction()
        {
            int indexOfFirstUnstarredCard = -1;

            for (int i = 0; i < TempFlashCardSet.FlashcardCollection.Count; i++)
            {
                if (!TempFlashCardSet.FlashcardCollection[i].IsStarred)
                {
                    indexOfFirstUnstarredCard = i;
                    break;
                }
            }
            TempFlashCardSet.AddCardToSet(indexToAddAt: indexOfFirstUnstarredCard);
        }
 private void DeleteCardFunction(IndividualCardModel cardlToDelete)
 {
     TempFlashCardSet.RemoveCardFromSet(cardlToDelete);
 }