Update Academy's approach to setting up a Node.js project

[honzajavorek]

Current content around setting up a Node.js project is outdated. They should be revisited and simplified, or even removed:

• https://docs.apify.com/academy/web-scraping-for-beginners/data-extraction/computer-preparation
• https://docs.apify.com/academy/web-scraping-for-beginners/data-extraction/project-setup
• https://docs.apify.com/academy/web-scraping-for-beginners/best-practices

Notes:

• The course links https://javascript.plainenglish.io/how-to-use-modular-patterns-in-nodejs-982f0e5c8f6e and explains package setup for Node.js, which can be simplified as of 2024
• Maybe we could use an official Node.js hello world tutorial or something? Installing Node.js changes over time and is different for each OS.