Part of the More JS in Web Dev Syllabus (moving towards a full focus on the front-end part of JS and importmap), let's remove any mention to the webpack bundler and yarn. Keeping node.js might come in handy, so keeping it might be a safe move.

Tasks:

• Audit mentions of webpack to remove them
• Audit mentions of yarn to remove them
• Audit mentions of node.js to see what is worth keeping