feat(nitro-cleanup): make delete button visible

src/components/admin/studio/nitro-cleanup-panel.tsx

@@ -1044,6 +1044,7 @@ export function NitroCleanupPanel() {
 								size="sm"
 								disabled={busy}
 								onClick={removeSelected}
+								className="bg-[var(--admin-error)] text-[var(--admin-error-foreground)] hover:bg-[var(--admin-error)]/90"
 							>
 								{deleting ? (
 									<Loader2 className="w-4 h-4 animate-spin mr-2" />