Visually show approvals in project timeline view

Description: Currently task approvals are only shown in the task view, but we regularly have projects stuck in task approvals that have gone unnoticed unless we hunt through tasks to see if it's stuck in an approval

Why is this feature important to you: In order to keep projects on track, visually identifying approvals in the project timeline view would greatly improve our ability to monitor risks in our projects in the project timeline view.

How would you like the feature to work?: Add some sort of visual queue that a task approval is pending approval in the timeline view without having to dig into tasks

Current Behaviour: Approvals are only visible in the task view.