Merge branch 'eduardosanz/cookie-preferences-button-small' into 'master'

Improve Cookie Preferences button on mobile

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/141893



Merged-by: Savas Vedova <svedova@gitlab.com>
Approved-by: James Rushford <jrushford@gitlab.com>
Approved-by: Aboobacker MK <akarakath@gitlab.com>
Approved-by: Savas Vedova <svedova@gitlab.com>
Co-authored-by: Eduardo Sanz García <esanz-garcia@gitlab.com>