fix: correct @unhead/vue v3 imports and properties

src/main.ts

@@ -2,7 +2,7 @@ import { createApp } from "vue";
 import { createPinia } from "pinia";
 import { MotionPlugin } from "@vueuse/motion";
 import App from "./App.vue";
-import { createUnhead } from "@unhead/vue";
+import { createHead } from "@unhead/vue/client";
 import router from "./router";
 import i18n from "./i18n";
 import "./index.css";
@@ -16,7 +16,7 @@ window.addEventListener('vite:preloadError', () => {
 const app = createApp(App);
 
 app.use(createPinia());
-app.use(createUnhead());
+app.use(createHead());
 
 app.use(MotionPlugin);
 app.use(router);

src/pages/Index.vue

@@ -34,8 +34,8 @@ useHead({
   ],
   script: [
     {
-      type: 'application/ld+json' as any,
-      children: computed(() => JSON.stringify({
+      type: 'application/ld+json',
+      innerHTML: computed(() => JSON.stringify({
         "@context": "https://schema.org",
         "@type": "LocalBusiness",
         "name": "Radionica 3D",