markdown preview: Allow toggling checkbox by click (#10364)

Release Notes:

- Added support for toggling a checkbox in markdown preview by clicking
on it (cmd+click)
([#5226](https://github.com/zed-industries/zed/issues/5226)).

---------

Co-authored-by: Remco Smits <62463826+RemcoSmitsDev@users.noreply.github.com>
fef0516f5bBennet Bo Fenner committed on 4/11/2024, 11:09:21 AM· committed by GitHubparenteb6f7c1
4 files changedLine totals unavailable