Custom dark mode

[shervinkoushan]

Hi, thanks for creating this!

It would be great if we could specify light/dark mode in addition to the current properties:

MCEmojiPickerRepresentableController(
    isPresented: $isPresented,
    selectedEmoji: $selectedEmoji,
    arrowDirection: .up,
    customHeight: 380.0,
    horizontalInset: .zero,
    isDismissAfterChoosing: true,
    selectedEmojiCategoryTintColor: .systemBlue,
    feedBackGeneratorStyle: .light
)