🚚(frontend) rename folder app to apps

The folder app will be used for more than one app, so it was
renamed to apps.

src/frontend/apps/desk/jest.config.ts

@@ -0,0 +1,15 @@
+import type { Config } from 'jest';
+import nextJest from 'next/jest.js';
+
+const createJestConfig = nextJest({
+  dir: './',
+});
+
+// Add any custom config to be passed to Jest
+const config: Config = {
+  coverageProvider: 'v8',
+  testEnvironment: 'jsdom',
+};
+
+// createJestConfig is exported this way to ensure that next/jest can load the Next.js config which is async
+export default createJestConfig(config);