Merge branch '450944-add-a-description-text-field-to-environment-details-1' into 'master'

Add a description text field to environment details

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/167062



Merged-by: Kos Palchyk <kpalchyk@gitlab.com>
Approved-by: Emily Bauman <ebauman@gitlab.com>
Approved-by: Serhii Yarynovskyi <syarynovskyi@gitlab.com>
Approved-by: John Mason <9717668-johnmason@users.noreply.gitlab.com>
Reviewed-by: Anna Vovchenko <avovchenko@gitlab.com>
Reviewed-by: Kos Palchyk <kpalchyk@gitlab.com>
Co-authored-by: Anna Vovchenko <avovchenko@gitlab.com>