Only hide archived project tags on workboard cards

Summary: Fixes T10413. I accidentally hid these everywhere, but only intended to hide them on workboards.

Test Plan:

• Viewed a workboard, saw un-archived projects only.
• Viewed a task detail page, saw archived and un-archived projects.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T10413

Differential Revision: https://secure.phabricator.com/D15335