Refactor code for readability, error handling, and modern JavaScript …

[AaronGulman]

Adhering to modern JavaScript practices improves code quality and maintainability. Using const and let for variable declarations, utilizing async/await for asynchronous operations, and leveraging promises for cleaner code are standard practices in modern JavaScript development and using platform-independent functions like path.join() ensures that the code behaves consistently across different operating systems. This makes the code more reliable and portable.