chore: update next.js and remove image optimize.

layouts/AuthorLayout.tsx

@@ -35,8 +35,8 @@ export default function AuthorLayout({ children, frontMatter }: Props) {
             <Image
               src={avatar}
               alt="avatar"
-              width="192px"
-              height="192px"
+              width={192}
+              height={192}
               className="h-48 w-48 rounded-full"
             />
             <h3 className="pt-4 pb-2 text-2xl font-bold leading-8 tracking-tight">

layouts/PostLayout.tsx

@@ -25,8 +25,8 @@ const Copyright = () => (
     <Image
       className="border-0"
       alt="知识共享许可协议"
-      width="88"
-      height="15"
+      width={88}
+      height={15}
       src="https://i.creativecommons.org/l/by-sa/4.0/80x15.png"
     />
   </a>
@@ -120,8 +120,8 @@ export default function PostLayout({
                       {author.avatar && (
                         <Image
                           src={author.avatar}
-                          width="38px"
-                          height="38px"
+                          width={38}
+                          height={38}
                           alt="avatar"
                           className="h-10 w-10 rounded-full"
                         />