Use shared group/project deletion modal for group deletion

Peter Hegmanrequested to merge
397039-make-confirmation-modal-consistent-between-groups-and-projects-3 into master

What does this MR do and why?

Use shared group/project deletion modal for group deletion

To have consistent UX across group and project deletion

Changelog: changed

References

Screenshots or screen recordings

Before After

How to set up and validate locally

MR acceptance checklist

Evaluate this MR against the MR acceptance checklist. It helps you analyze changes to reduce risks in quality, performance, reliability, security, and maintainability.

Related to #397039

Merge request reports