codeintel: Replace hard-coded list with site setting
Created by: efritz
Must merge https://github.com/sourcegraph/deploy-sourcegraph-dot-com/pull/11828 after this setting is live (to avoid a banner on Cloud).
Created by: efritz
Must merge https://github.com/sourcegraph/deploy-sourcegraph-dot-com/pull/11828 after this setting is live (to avoid a banner on Cloud).