Need task completion dialogue box for parent task when all subtasks are completed

Currently, when we complete all subtasks, the parent task does not mark itself as complete. We propose that when all subtasks are marked complete, then we should be prompted to also mark the parent task as complete.

Makes sense. However, in some cases we have seen a lot of tasks being added as a subtask in which case the subtasks are loaded by pages in the frontend.

In such cases we can’t correctly predict if all the subtasks have been completed by the user.