useLocaleHead() 组合式函数返回与本地化相关的头部属性。
declare function useLocaleHead(options: I18nHeadOptions): Ref<I18nHeadMetaInfo>
options一个对象，接受以下可选字段：
dirbooleantruedir 属性。langbooleantruelang 属性。seoboolean | SeoAttributesOptions<script setup>
const i18nHead = useLocaleHead({
seo: {
canonicalQueries: ['foo']
}
})
useHead(() => ({
htmlAttrs: {
lang: i18nHead.value.htmlAttrs!.lang
},
link: [...(i18nHead.value.link || [])],
meta: [...(i18nHead.value.meta || [])]
}))
</script>