fix profile picture title on profile page

fixes CNVS-12076

test plan:
 - navigate to user profile page.
 - hover over profile picture, make sure the title pops up.

Change-Id: I1379da61c337d7be28f2611a8d351c08406b1ac5
Reviewed-on: https://gerrit.instructure.com/32620
Tested-by: Jenkins <jenkins@instructure.com>
Reviewed-by: Braden Anderson <banderson@instructure.com>
QA-Review: Trevor deHaan <tdehaan@instructure.com>
Product-Review: Jon Willesen <jonw@instructure.com>