codeintel: create CTA for users to try out new reference panel

Created by: Numbers88s

Closes #34702 (closed)

Adds CTA to reference panel for users to try out the new version.

Adds CTA for users to provide feedback for new reference panel. The copy is temporary.

Test plan

Manually tested.

App preview:

• Web
• Storybook

Check out the client app preview documentation to learn more.