Merge branch '382326_show_group_sidebar_for_new_subgroup_project' into 'master'

Show group sidebar while creating a new subgroup or project

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/109649



Merged-by: Phil Hughes <me@iamphill.com>
Approved-by: Alex Buijs <abuijs@gitlab.com>
Approved-by: Phil Hughes <me@iamphill.com>
Approved-by: Roy Zwambag <rzwambag@gitlab.com>
Approved-by: Artur Fedorov <afedorov@gitlab.com>
Approved-by: Serena Fang <sfang@gitlab.com>
Reviewed-by: Alex Buijs <abuijs@gitlab.com>
Reviewed-by: Artur Fedorov <afedorov@gitlab.com>
Co-authored-by: Thomas Hutterer <thutterer@gitlab.com>