Corrects term styling on the courses page

fixes CNVS-15492

Test Plan:
  - Go to the courses page (/courses)
  - Any terms should be displayed in a italicized light gray
    color next to the course title.

Change-Id: Ie1bb9040a8d03c551f02ce0e8171178532136ee0
Reviewed-on: https://gerrit.instructure.com/41043
Product-Review: Hilary Scharton <hilary@instructure.com>
Reviewed-by: Jeremy Stanley <jeremy@instructure.com>
Tested-by: Jenkins <jenkins@instructure.com>
QA-Review: Clare Strong <clare@instructure.com>