When a user enables/disables DarkConsole, forget their console UI visibility setting
Summary: Ref T4103. This primarily makes sure the console gets turned on when you enable it so you aren't like "where's the console???"
Test Plan: Enabled console, saw console.
Reviewed By: chad
Maniphest Tasks: T4103
Differential Revision: https://secure.phabricator.com/D16030