Add @nuxthq/studio and enable Nuxt Studio preview API

This commit adds the @nuxthq/studio dependency to package.json and configures the Nuxt Studio preview API in nuxt.config.ts. These changes enable preview functionality for better content management in a Nuxt application.

package.json

@@ -17,6 +17,7 @@
     "@nuxt/content": "3.0.1",
     "@nuxt/image": "^1.9.0",
     "@nuxt/ui": "3.0.0-alpha.12",
+    "@nuxthq/studio": "2.2.1",
     "@nuxthub/core": "^0.8.15",
     "@nuxtjs/google-fonts": "^3.2.0",
     "@nuxtjs/i18n": "9.1.5",
@@ -36,8 +37,8 @@
     "@tailwindcss/typography": "^0.5.16",
     "@types/node": "^22.12.0",
     "@vueuse/core": "^12.5.0",
-    "@vueuse/nuxt": "^12.5.0",
     "@vueuse/math": "^12.5.0",
+    "@vueuse/nuxt": "^12.5.0",
     "drizzle-kit": "^0.30.3",
     "eslint": "^9.19.0",
     "typescript": "^5.7.3",