fix searching in new files

test plan:
in new files,
type something in the search box
hit enter
it should work

Change-Id: Ib47fd0fbfb415d242585f1a08c41985b04b8c363
Reviewed-on: https://gerrit.instructure.com/40289
Tested-by: Jenkins <jenkins@instructure.com>
Reviewed-by: Jason Madsen <jmadsen@instructure.com>
Product-Review: Ryan Shaw <ryan@instructure.com>
QA-Review: Ryan Shaw <ryan@instructure.com>