fix styling of outcome criteria
fix styling of outcome criteria

closes OUT-2353

Test plan:
- Visit account learning outcomes page
  and verify styling of outcome criterion
- Visit course learning outcome page
  and verify styling of outcome criterion
- Visit Find Outcome from course outcome page
  and verify styling
- Visit Find Outcome from assignment edit page
  (editing rubric) and verify styling

Change-Id: I7d651275cf690a93d2e597dd59fdb4fcb4f05f01
Reviewed-on: https://gerrit.instructure.com/155445
Tested-by: Jenkins
Reviewed-by: Matt Berns <e53c8988cd428dde240324ce2797c8eb7073560f@instructure.com>
Reviewed-by: Ryan Shaw <ea3cd978650417470535f3a4725b6b5042a6ab59@instructure.com>
QA-Review: Augusto Callejas <7d9b9fd126d23d111f693e51511b33ea0e7192f6@instructure.com>
Product-Review: Sidharth Oberoi <b9947257dd0ff1b6a5d899864f5ca846b60f0be3@instructure.com>

instructure/canvas-lms,sfu/canvas-lms,instructure/canvas-lms,sfu/canvas-lms,djbender/canvas-lms,instructure/canvas-lms,sfu/canvas-lms,instructure/canvas-lms,djbender/canvas-lms,djbender/canvas-lms,djbender/canvas-lms,sfu/canvas-lms,sfu/canvas-lms,instructure/canvas-lms,sfu/canvas-lms,instructure/canvas-lms,sfu/canvas-lms,instructure/canvas-lms