chore(package): add format script for code formatting with Prettier

Author: LuggaPugga

package.json

@@ -7,7 +7,8 @@
     "dev": "next dev --turbo",
     "start": "next start",
     "preview": "opennextjs-cloudflare build && opennextjs-cloudflare preview",
-    "postinstall": "fumadocs-mdx"
+    "postinstall": "fumadocs-mdx",
+    "format": "prettier --write ."
   },
   "dependencies": {
     "@icons-pack/react-simple-icons": "^12.8.0",