Add tooltip to the header of the Backlog and Done lists
Description
I was not understating why there was a backlog and a done list, I was going to open an issue proposing to remove the default lists, when I found the explanation https://gitlab.com/gitlab-org/gitlab-ce/issues/17907.
Backlog (default): shows all issues that do not fall in one of the other lists. Always appears on the very left
Done (default): shows all closed issues
Like me I believe first board users won't get why there are two default lists that they can not edit/delete.
Design
Let's show a tooltip when hovering over the Done
list header, like we do for other list headers. The tooltip should read:
Shows all closed issues. Moving an issue to this list closes it
Links / references
Edited by 🤖 GitLab Bot 🤖