fix(studio): resolve hardcoded color violation in organize imports dialog

src/components/admin/studio/organize-imports-dialog.tsx

@@ -631,7 +631,7 @@ export function OrganizeImportsDialog({
 												type="checkbox"
 												checked={onlyUnplaced}
 												onChange={(e) => setOnlyUnplaced(e.target.checked)}
-												className="h-3 w-3 rounded border-gray-300"
+												className="h-3 w-3 rounded border-[var(--admin-border)]"
 											/>
 											<span>{t("onlyUnplaced")}</span>
 										</label>