CI: Fix Tooltip imports causing TS build to fail

Created by: umpox

Description

See these failures: https://buildkite.com/sourcegraph/sourcegraph/builds/152214#0181365a-7dbc-4223-8eb8-df405a79a9a2/150-258

Worried that something seems wrong in our CI setup, as these TS errors should block merging

Test plan

N/A - Fixing CI builds

App preview:

• Web
• Storybook

Check out the client app preview documentation to learn more.