Merge branch 'kerrizor/tidying-up-cells-blueprint' into 'master'

Minor tidying of Cells 1.0 blueprint

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/143261



Merged-by: Amy Qualls <aqualls@gitlab.com>
Approved-by: Amy Qualls <aqualls@gitlab.com>
Co-authored-by: Kerri Miller <kerrizor@kerrizor.com>