Merge branch...

Merge branch '498844-model-registry-empty-state-for-no-description-for-models-and-versions-2' into 'master' 

Model registry: Improve empty model description state

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/169562



Merged-by: Coung Ngo <cngo@gitlab.com>
Approved-by: Lindsey Shelton <lshelton@gitlab.com>
Approved-by: Coung Ngo <cngo@gitlab.com>
Reviewed-by: Coung Ngo <cngo@gitlab.com>
Reviewed-by: Lindsey Shelton <lshelton@gitlab.com>
Co-authored-by: fdegier <fdegier@gitlab.com>