fix: use useHead from #imports

Revert "fix: prefer #app useHead (#271)"

This reverts commit eecd223.

src/runtime/plugins/script.ts

@@ -1,6 +1,5 @@
 import type { TurnstileRenderOptions } from '../types'
-import { defineNuxtPlugin, useRuntimeConfig, ref, isVue2, watch } from '#imports'
-import { useHead } from '#app'
+import { defineNuxtPlugin, useRuntimeConfig, useHead, ref, isVue2, watch } from '#imports'
 
 const configure = [
   'window.loadTurnstile = new Promise(resolve => {',