Summary: Ref T11957, builds out `/home/menu/` as a basic structure for adding/editing the homepage menu.
Test Plan: visit `/home/menu/` and add items to global and personal. Not wired to anything.
Reviewers: epriestley
Reviewed By: epriestley
Subscribers: Korvin
Maniphest Tasks: T11957
Differential Revision: https://secure.phabricator.com/D17180
