Removed blog and product pages and moved their contents to new blog and product directories, respectively. Added a new 404 error page for invalid routes. Updated server configurations in 'vercel.json' to leverage additional security by adding 'cdnjs.cloudflare.com' to Content-Security-Policy headers.
Introduced new UI components including testimonial section, avatar, and image elements. Configured secure headers in vercel.json file to enhance security. These changes improve both the aesthetic appeal and security of the website.