Order projects near the top of results

Summary: Reorder main search typehaead as Jump, Apps, Prjoects, Users, Symbols instead of having projects at the bottom. Ref T5176.

Test Plan:

Reviewers: btrahan, chad

Reviewed By: chad

Subscribers: epriestley

Maniphest Tasks: T5176

Differential Revision: https://secure.phabricator.com/D9283