add test for presentation

apps/app/playwright/20-basic-features/presentation.spec.ts

@@ -0,0 +1,21 @@
+import { test, expect } from '@playwright/test';
+
+test('Presentation', async({ page }) => {
+  await page.goto('/');
+
+  // show presentation modal
+  await page.getByTestId('grw-contextual-sub-nav').getByTestId('open-page-item-control-btn').click();
+  await page.getByTestId('open-presentation-modal-btn').click();
+
+  // check the content of the h1
+  await expect(page.getByRole('application').getByRole('heading', { level: 1 }))
+    .toHaveText(/Welcome to GROWI/);
+
+  // forward the slide
+  await page.keyboard.press('ArrowRight');
+  await page.keyboard.press('ArrowRight');
+
+  // check the content of the h1
+  await expect(page.getByRole('application').getByRole('heading', { level: 1 }))
+    .toHaveText(/For administrator/);
+});