Merge branch 'float-right' into 'master'

Migrate float-right to gl-float-right

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/143260



Merged-by: Andrew Fontaine <afontaine@gitlab.com>
Approved-by: Aboobacker MK <akarakath@gitlab.com>
Approved-by: Andrew Fontaine <afontaine@gitlab.com>
Approved-by: Rudy Crespo <rcrespo@gitlab.com>
Co-authored-by: Annabel Dunstone Gray <annabel.dunstone@gmail.com>