[Nav] fix integration tests

Created by: thenamankumar

Fix navbar code search highlight integration tests.

https://sourcegraph.slack.com/archives/C02FLQDD3TQ/p1651528028103239

Test plan

yarn test-integration --grep 'GlobalNavbar' should be green.

App preview:

• Web
• Storybook

Check out the client app preview documentation to learn more.