Let's fix this error by importing the Link component from Next.js. Here's the revised code for the cart page:

This revision should resolve the "Link is not defined" error by properly importing and using the Link component from Next.js. The cart page should now function correctly without any errors related to the Link component.

I'll remove the cart feature and fix the issues with the homepage plan buttons and pricing page. Let's go through this step by step.

Let's start by removing the cart feature:

These changes remove the cart feature, fix the homepage plan buttons to correctly link to the templates page with the selected plan, and update the pricing page to redirect to the templates page instead of the checkout when a plan is chosen.

The flow is now:

1. User selects a plan from the homepage or pricing page
2. User is directed to the templates page with the selected plan as a query parameter
3. User selects a template
4. User is directed to the checkout page with both the plan and template information

This should resolve the issues you mentioned and simplify the user flow by removing the cart feature.