chore: install prettier

package.json

@@ -5,6 +5,7 @@
   "scripts": {
     "build": "nuxt build",
     "dev": "nuxt dev",
+    "format": "prettier . --write",
     "generate": "nuxt generate",
     "preview": "nuxt preview",
     "postinstall": "nuxt prepare",
@@ -50,6 +51,7 @@
   "devDependencies": {
     "@nuxt/icon": "^2.2.1",
     "nuxt": "^4.2.0",
+    "prettier": "3.8.3",
     "typescript": "^5.9.3"
   }
 }