fix: type def

Author: jhefferman-sfdc

test/commands/lightning/dev/component-preview/hmr.nut.ts

@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-
+/// <reference lib="dom" />
 import type { ChildProcessByStdio } from 'node:child_process';
 import fs from 'node:fs';
 import path from 'node:path';