Merge branch '412715-create-trial-discover-page-experiment' into 'master'

Implementing Trial Discover Page Experiment Stage 2

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/144017



Merged-by: Doug Stull <dstull@gitlab.com>
Approved-by: Rajan Mistry <rmistry@gitlab.com>
Approved-by: Malcolm Locke <mlocke@gitlab.com>
Approved-by: Doug Stull <dstull@gitlab.com>
Reviewed-by: Doug Stull <dstull@gitlab.com>
Reviewed-by: Malcolm Locke <mlocke@gitlab.com>
Co-authored-by: Ross Byrne <robyrne@gitlab.com>