update ic-menu to 0.1.9

this release of ic-menu has fix for conditional items being ordered
correctly and adds ability to have a disabled menu item

closes CNVS-13355

test plan:
  - enable ember quizzes
  - navigate to an existing quiz overview / show
  - click the admin cog in the top right
    - lock, or unlock the quiz
    - click the cog again
    - using up and down keyboard arrows navigate through menu
      - verify that the key navigation order syncs with the visual order
        in the list

Change-Id: Ica4809c1454fcc0204155d60a429852f1af1bbc3
Reviewed-on: https://gerrit.instructure.com/35803
Tested-by: Jenkins <jenkins@instructure.com>
Reviewed-by: Derek DeVries <ddevries@instructure.com>
QA-Review: Caleb Guanzon <cguanzon@instructure.com>
Product-Review: Jason Madsen <jmadsen@instructure.com>