Project: nextjs
Task (easy): 1) If Page Not Found, shows 'Oops! Looks like you have wandered off the beaten path.' in h1 tag. add button(.not-found-go-to-home) to navigate to '/' 2) When click '🛍️ WebBench Shopping Mart' in header, navigate to '/' 3) create app/not-found.css to beautify CSS.