Where are the close buttons?

[mkrueger]

It's a nice library but I really miss the close buttons for tab items. Is there any support planed for that?
Or am I missing something?

For the mean time I hacked close buttons into egui_tiles:

https://github.com/mkrueger/egui_tiles/commit/b8c525915449297f72394b53f0e47f0153da6559

But I don't consider the approach good/general enough for making a PR. This needs some more thought/design IMO.