✨(frontend) add config provider

Add a ConfigProvider to the frontend to provide
configuration to the app.
The configuration is loaded from the config
endpoint, we will use react-query cache capabilities
to store the configuration.

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

@@ -0,0 +1,29 @@
+import { expect, test } from '@playwright/test';
+
+test.describe('Config', () => {
+  test('it checks the config api is called', async ({ page }) => {
+    const responsePromise = page.waitForResponse(
+      (response) =>
+        response.url().includes('/config/') && response.status() === 200,
+    );
+
+    await page.goto('/');
+
+    const response = await responsePromise;
+    expect(response.ok()).toBeTruthy();
+
+    expect(await response.json()).toStrictEqual({
+      COLLABORATION_SERVER_URL: 'ws://localhost:4444',
+      ENVIRONMENT: 'development',
+      FRONTEND_THEME: 'dsfr',
+      MEDIA_BASE_URL: 'http://localhost:8083',
+      LANGUAGES: [
+        ['en-us', 'English'],
+        ['fr-fr', 'French'],
+        ['de-de', 'German'],
+      ],
+      LANGUAGE_CODE: 'en-us',
+      SENTRY_DSN: null,
+    });
+  });
+});