Ability to create/manage a todo from an issue/MR/epic comment
Problem
If I @mention someone, they will receive a todo and that todo will be linked directly to my comment. However, when I want to create a todo manually from an issue, my only option is to create one globally for the entire issue. I can't create one for a specific comment or thread.
Since we already allow todos to be linked to comments, it should be easy to add the option "Add a to do" on an issue comment's More actions
menu. I think the global "Add a to do" should remain.
Proposal
Add a to-do: Add a menu item on a comment to add a todo for that comment. This would act identical to the "mentioned you on..." to do behavior, except reference the action as "You added a to-do for comment..."
Mark complete: When a to-do exists for a comment, show an additional action button for marking that todo complete. In the design this is shown as a visible action, though it could just exist in the action menu replacing the "Add a to-do" button.