Merge branch '442090-feedback-from-two-column-work-item-view' into 'master'

Move work item two column and editable widgets out of FF

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/147020



Merged-by: Simon Knox <simon@gitlab.com>
Approved-by: Simon Knox <simon@gitlab.com>
Reviewed-by: Simon Knox <simon@gitlab.com>
Reviewed-by: Coung Ngo <cngo@gitlab.com>
Co-authored-by: Deepika Guliani <dguliani@gitlab.com>
Co-authored-by: Donald Cook <dcook@gitlab.com>