Makes course navigation item have focus after move

fixes CNVS-15187

test plan:
  - Go to the course settings page (/courses/##/settings)
  - Using keyboard navigation use the Move menu option
    to move a module.
  - After the move, the module you just moved should have keyboard
    focus.

Change-Id: I04926129af3b75f54d6f1a9ec196cc5a539256de
Reviewed-on: https://gerrit.instructure.com/40351
Tested-by: Jenkins <jenkins@instructure.com>
Reviewed-by: Jeremy Stanley <jeremy@instructure.com>
QA-Review: Clare Strong <clare@instructure.com>
Product-Review: Cosme Salazar <cosme@instructure.com>