[Feature] List of keys returned from onWillAccept and onAccept

[Phoenix-TU]

Now onWillAccept and onAccept return a list of keys of the stored widget, so you can know the order of the dragged tiles.

[bugrevealingbme]

please merge

[Phoenix-TU]

please merge

You can temporarily use my fork to achieve this. It's updated til the latest push on the original repo.
Sadly, i think the owner doesn't mantain anymore this repo.
And btw, i saw your other open issues. For vertical and horizonal spacing, you can resolve using the padding function. For observer changes, it actually works (i've tested it with changeNotifier and riverpod), so if it doesn't work for you, probably you're doing something wrong.

[bugrevealingbme]

I'm talking about spacing vertically. I guess there's no way to do that