R1:ad01e26af71e

Redesign Home/Profile/Projects side navigation

Summary: Ref T11957. Needs some more polish, but I think everything here is square.

Test Plan: Add personal/global items to home, test mobile. Test workboards / colors.

Reviewers: epriestley

Reviewed By: epriestley

Subscribers: 20after4, rfreebern, Korvin

Maniphest Tasks: T11957

Differential Revision: https://secure.phabricator.com/D17259