ReferenceError: Missing 'helmet' and 'cors' require statement

[11AN-CODE]

Describe the bug
When running the project for the first time, the server crashes with a ReferenceError because the 'cors' and 'helmet' packages are not defined.

To Reproduce

1. Clone the repository.
2. Run 'npm install'.
3. Run 'npm run dev' to start the server.

Expected behavior
The server should start successfully without any errors.

Screenshots

Desktop (please complete the following information):

• OS: Windows
• Chrome
• 11

Smartphone (please complete the following information):

• Device: [e.g. iPhone6]
• OS: [e.g. iOS8.1]
• Browser [e.g. stock browser, safari]
• Version [e.g. 22]

Additional context
The error can be fixed by adding the following lines to index.js: const cors = require('cors'); const helmet = require('helmet');