Improve bulk actions

[kulczy]

Q	A
Branch?	master
Bug fix?	no
New feature?	no
BC breaks?	no
Deprecations?	no
Related tickets
License	MIT

[lchrusciel]

Thanks, Szymon! 🥇

[dbr031]

Neat! Perhaps not the best place to post feedback, but I'd recommend adding support for the lesser known indeterminate checkbox state on the $checkboxAll element: The indeterminate prop would be true when only some (but not all) $checkboxes are checked. It wouldn't add any new functionality, but improve overall visual feedback.
A little more information on the third indeterminate checkbox state can be found e.g. on CSS-tricks.
We have yet to test Sylius for ourselves, but I can look into opening a PR perhaps later this month. Feel free to beat us to it though, if you think this would be useful.