fix(ui): let ConfirmButton's dialog wear the destructive style

ConfirmButton took a `destructive` prop and dropped it on the way to its
dialog, so every delete, revoke and remove built on it confirmed with a
neutral primary button while ConfirmDialog confirmed the same kind of act
in red. The prop is forwarded now, and the call sites whose act takes
something away pass it. A guard holds every confirmation whose slot names
a destroying act to the destructive style; resets stay neutral.

src/components/timeline/life-event-form.tsx

@@ -285,6 +285,7 @@ export function LifeEventForm({
           className="mr-auto min-h-11 sm:min-h-9"
           icon={<Trash2 className="size-4" aria-hidden="true" />}
           slot="life-event-delete"
+          destructive
         />
       )}
       {onCancel && (