✨(frontend) add back the footer and cgu pages

We need to add back the footer and cgu pages,
but we will not display the footer on the doc
editor pages.

src/frontend/apps/e2e/__tests__/app-impress/footer.spec.ts

@@ -0,0 +1,77 @@
+import { expect, test } from '@playwright/test';
+
+import { goToGridDoc } from './common';
+
+test.beforeEach(async ({ page }) => {
+  await page.goto('/');
+});
+
+test.describe('Footer', () => {
+  test('checks all the elements are visible', async ({ page }) => {
+    const footer = page.locator('footer').first();
+
+    await expect(footer.getByAltText('Gouvernement Logo')).toBeVisible();
+
+    await expect(
+      footer.getByRole('link', { name: 'legifrance.gouv.fr' }),
+    ).toBeVisible();
+
+    await expect(
+      footer.getByRole('link', { name: 'info.gouv.fr' }),
+    ).toBeVisible();
+
+    await expect(
+      footer.getByRole('link', { name: 'service-public.fr' }),
+    ).toBeVisible();
+
+    await expect(
+      footer.getByRole('link', { name: 'data.gouv.fr' }),
+    ).toBeVisible();
+
+    await expect(
+      footer.getByRole('link', { name: 'Legal Notice' }),
+    ).toBeVisible();
+
+    await expect(
+      footer.getByRole('link', { name: 'Personal data and cookies' }),
+    ).toBeVisible();
+
+    await expect(
+      footer.getByRole('link', { name: 'Accessibility' }),
+    ).toBeVisible();
+
+    await expect(
+      footer.getByText(
+        'Unless otherwise stated, all content on this site is under licence',
+      ),
+    ).toBeVisible();
+  });
+
+  test('checks footer is not visible on doc editor', async ({ page }) => {
+    await expect(page.locator('footer')).toBeVisible();
+    await goToGridDoc(page);
+    await expect(page.locator('footer')).toBeHidden();
+  });
+
+  const legalPages = [
+    { name: 'Legal Notice', url: '/legal-notice/' },
+    { name: 'Personal data and cookies', url: '/personal-data-cookies/' },
+    { name: 'Accessibility', url: '/accessibility/' },
+  ];
+  for (const { name, url } of legalPages) {
+    test(`checks ${name} page`, async ({ page }) => {
+      const footer = page.locator('footer').first();
+      await footer.getByRole('link', { name }).click();
+
+      await expect(
+        page
+          .getByRole('heading', {
+            name,
+          })
+          .first(),
+      ).toBeVisible();
+
+      await expect(page).toHaveURL(url);
+    });
+  }
+});