Tweak highlighter styles & revamp About content layout (#8)

Author: steadyfall

package-lock.json

@@ -15,6 +15,7 @@
     "@mdx-js/loader": "^3.1.0",
     "@mdx-js/react": "^3.1.0",
     "@next/mdx": "^15.1.6",
+    "@radix-ui/react-accordion": "^1.2.4",
     "class-variance-authority": "^0.7.0",
     "clsx": "^2.1.1",
     "copy-to-clipboard": "^3.3.3",