Merge branch 'slashmanov/migrate-actions-buttons-to-gl-disclosure-dropdown' into 'master'

Migrate widget action buttons to GlDisclosureDropdown

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/133408



Merged-by: Simon Knox <simon@gitlab.com>
Approved-by: Simon Knox <simon@gitlab.com>
Approved-by: Briley Sandlin <bsandlin@gitlab.com>
Co-authored-by: Stanislav Lashmanov <slashmanov@gitlab.com>