R1:b596d850ff9d

Fix one more call to `addExtraQuicksandConfig()`

Summary:
Fixes T9881. This one had Quicksand spelled as "QuickSand" (with capital "S") so it probably didn't get hit by `grep`.

Didn't need to do any special magic with the footer, as far as I can tell.

Test Plan: Loaded project board view, seemed to work OK (no footer, nav works, title works, mobile menu sane).

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T9881

Differential Revision: https://secure.phabricator.com/D14626