Merge branch '446243-organization-group-project-search-ux-improvements' into 'master'

Improve organizations groups and projects empty state

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/156675



Merged-by: David Pisek <dpisek@gitlab.com>
Approved-by: Phillip Wells <pwells@gitlab.com>
Approved-by: Mike Nichols <mnichols@gitlab.com>
Approved-by: Diana Zubova <dzubova@gitlab.com>
Approved-by: David Pisek <dpisek@gitlab.com>
Co-authored-by: Peter Hegman <phegman@gitlab.com>