Fix Bugs and Finish Supabase and Prisma Integration

In this lesson, you'll resolve key issues in your app's integration with Supabase and Prisma. You'll adjust type definitions to handle null values correctly and implement cache invalidation for the MarkdownRenderer component for accurate data rendering.

Supabase Documentation: https://supabase.com/docs

Prisma Documentation: https://www.prisma.io/docs