Backdrop doesn't fade out when closing modal with fling gesture

[rudolfs-pelss]

I noticed that the backdrop doesn't animate out if the modal is closed using a fling gesture.

Here is a snack and a video:

Screen.Recording.mov

[janisievins]

@rudolfs-pelss see if this patch does the trick. 🤞
react-native-modalfy+3.7.0.patch

@CharlesMangwa 👋 pls, see the patch & perhaps include it in the next version if it makes sense? 😊