Highlight text filters when non-empty.

Screencast: https://screencast.googleplex.com/cast/NTQ4MjUyNjkyMjUwNjI0MHw5NWI5OWQ0ZC03OA

Fixes: 372623344
Test: npm run test:unit:ci
Change-Id: Iae2702a4b5ec1ac705c4c9f62e4c470e551bbf9e
7 files changed