R1:67d9568fb5a9

Add better description to built-in Home

Summary: Ref T12174. This could be a little more verbose.

Test Plan: Review Global Menu Items

Reviewers: epriestley

Reviewed By: epriestley

Subscribers: Korvin

Maniphest Tasks: T12174

Differential Revision: https://secure.phabricator.com/D17294