In Task Graphs, provide a parent/child hint and fix weird strikethrough
Summary:
Fixes T11386. Ref T4788.
- Apparently fix weird strikethrough effect? Spooky!
- Provide a little icon hint in the left column about which tasks are direct parents/children, vs just reachable somehow. I don't think this is super useful/important, but seems maybe nice?
Test Plan:
Reviewers: chad
Reviewed By: chad
Maniphest Tasks: T4788, T11386
Differential Revision: https://secure.phabricator.com/D16342