Upgrade UI design and improve some functions

components/utils/Footer.tsx

@@ -19,11 +19,6 @@ export const Footer = () => {
       }}
     >
       <footer className="my-5 flex flex-col justify-center py-2 text-sm">
-        <div className="flex justify-center">
-          <Link target="_blank" href="https://vercel.com/?utm_source=github-contributions-chart&utm_campaign=oss">
-            <img src="/powered-by-vercel.svg" alt="Powered by vercel" className="h-8" />
-          </Link>
-        </div>
         <div className="my-2 flex flex-wrap justify-center space-x-3 text-center text-gray-500 underline dark:text-gray-400">
           <Link href="https://github.com/PrinOrange/nextjs-lexical-blog" title="Sponsor me for my works.">
             {"Source Code"}