Merge branch '381002-vsa-settings-page-add-form-content' into 'master'

Add form content to Value Stream Analytics standalone settings page

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/147371



Merged-by: Ezekiel Kigbo <3397881-ekigbo@users.noreply.gitlab.com>
Approved-by: Alex Pennells <apennells@gitlab.com>
Approved-by: Ezekiel Kigbo <3397881-ekigbo@users.noreply.gitlab.com>
Reviewed-by: Ezekiel Kigbo <3397881-ekigbo@users.noreply.gitlab.com>
Reviewed-by: Alex Pennells <apennells@gitlab.com>
Reviewed-by: Rudy Crespo <rcrespo@gitlab.com>
Co-authored-by: Rudy Crespo <rcrespo@gitlab.com>