Wizard: Basic Locale step

This adds Locale step basics and file structure.

src/test/Components/CreateImageWizard/steps/Locale/Locale.test.tsx

@@ -0,0 +1,63 @@
+import type { Router as RemixRouter } from '@remix-run/router';
+import { screen, waitFor } from '@testing-library/react';
+import { userEvent } from '@testing-library/user-event';
+
+import {
+  clickBack,
+  clickNext,
+  verifyCancelButton,
+} from '../../wizardTestUtils';
+import { clickRegisterLater, renderCreateMode } from '../../wizardTestUtils';
+
+let router: RemixRouter | undefined = undefined;
+
+const goToLocaleStep = async () => {
+  const user = userEvent.setup();
+  const guestImageCheckBox = await screen.findByRole('checkbox', {
+    name: /virtualization guest image checkbox/i,
+  });
+  await waitFor(() => user.click(guestImageCheckBox));
+  await clickNext(); // Registration
+  await clickRegisterLater();
+  await clickNext(); // OpenSCAP
+  await clickNext(); // File system configuration
+  await clickNext(); // Snapshots
+  await clickNext(); // Custom repositories
+  await clickNext(); // Additional packages
+  await clickNext(); // Users
+  await clickNext(); // Timezone
+  await clickNext(); // Locale
+};
+
+describe('Step Locale', () => {
+  beforeEach(() => {
+    vi.clearAllMocks();
+    router = undefined;
+  });
+
+  test('clicking Next loads First Boot', async () => {
+    await renderCreateMode();
+    await goToLocaleStep();
+    await clickNext();
+    await screen.findByRole('heading', {
+      name: 'First boot configuration',
+    });
+  });
+
+  test('clicking Back loads Timezone', async () => {
+    await renderCreateMode();
+    await goToLocaleStep();
+    await clickBack();
+    await screen.findByRole('heading', { name: 'Timezone' });
+  });
+
+  test('clicking Cancel loads landing page', async () => {
+    await renderCreateMode();
+    await goToLocaleStep();
+    await verifyCancelButton(router);
+  });
+});
+
+// TO DO 'Step Locale' -> 'revisit step button on Review works'
+// TO DO 'Locale request generated correctly'
+// TO DO 'Locale edit mode'