feat(cli): allow executing commands on perfect match (#4397)

Co-authored-by: Jenna Inouye <jinouye@google.com>

packages/cli/src/ui/hooks/useCompletion.test.ts

@@ -4,6 +4,8 @@
  * SPDX-License-Identifier: Apache-2.0
  */
 
+/** @vitest-environment jsdom */
+
 import { describe, it, expect, beforeEach, vi, afterEach } from 'vitest';
 import type { Mocked } from 'vitest';
 import { renderHook, act } from '@testing-library/react';