test(app-shell): drop the unused screen import Lint UI reds on

RecordDetailView.auditDisplayLocale-10442 stopped reading `screen` when
the stream windowing commit moved its assertion; object-ui/no-unused-imports
is an error in app-shell's lint.

Claude-Session: https://claude.ai/code/session_cdb7a717def74e719988f089fbaa18ff
Co-Authored-By: Claude <noreply@anthropic.com>

Author: hotlong

ui/packages/app-shell/src/views/RecordDetailView.auditDisplayLocale-10442.test.tsx

@@ -26,7 +26,7 @@
 
 import * as React from 'react';
 import { afterEach, beforeEach, describe, expect, it, vi } from 'vitest';
-import { cleanup, render, screen, waitFor } from '@testing-library/react';
+import { cleanup, render, waitFor } from '@testing-library/react';
 import { MemoryRouter } from 'react-router-dom';
 import { MetadataCtx } from '@object-ui/react';
 import { I18nProvider, LocalizationProvider } from '@object-ui/i18n';