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.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T4103

Differential Revision: https://secure.phabricator.com/D16030