add compute intro card
Created by: unclejustin
🛑 Do not merge until the feature flag is in place.
Update this PR to use the experimental feature flag before merging.
Closes https://github.com/sourcegraph/sourcegraph/issues/37220
Test plan
Navigate to insights create insight page. Group results card should match designs. Create button should link to group results creation form.
App preview:
Check out the client app preview documentation to learn more.