Frontend: Delete group secrets

Why are we doing this work

This is for integrating the mutation for deleting group secrets.

Implementation table

header	header
backend	#577342
frontend	👈 You are here!

Implementation plan

• Update mutation used to delete a group secret. The user should be able to delete from the table and from the details page.

Verification steps

1. Upload a Premium license (or above).
2. Set up openbao and enable the secrets manager on your gdk.
3. Enable the secrets_manager_group feature flag.
4. Go to your project/group settings (Settings > General) and expand Visibility, project features, permissions or Permissions and group features and enable the group secrets manager.
5. Go to /path-to-group/-/secrets to create and delete your secrets.