(stable) Add Member/Watcher info to search results

Summary: Fixes T12707 Adds additional information to search results for if user is a member or a watcher of a project. Also removed the icon colors, which I'll find a better way to denote in future.

Test Plan: Join a project, watch a project, view results list in /projects/

Reviewers: epriestley

Reviewed By: epriestley

Subscribers: Korvin

Maniphest Tasks: T12707

Differential Revision: https://secure.phabricator.com/D17880