docs: fix vue example

examples/nuxt-example/components/ui/pin-input/PinInputInput.vue

@@ -0,0 +1,18 @@
+<script setup lang="ts">
+import { type HTMLAttributes, computed } from 'vue'
+import { PinInputInput, type PinInputInputProps, useForwardProps } from 'radix-vue'
+import { cn } from '@/lib/utils'
+
+const props = defineProps<PinInputInputProps & { class?: HTMLAttributes['class'] }>()
+
+const delegatedProps = computed(() => {
+  const { class: _, ...delegated } = props
+  return delegated
+})
+
+const forwardedProps = useForwardProps(delegatedProps)
+</script>
+
+<template>
+  <PinInputInput v-bind="forwardedProps" :class="cn('relative text-center focus:outline-none focus:ring-2 focus:ring-ring focus:relative focus:z-10 flex h-9 w-9 items-center justify-center border-y border-r border-input text-sm transition-all first:rounded-l-md first:border-l last:rounded-r-md', props.class)" />
+</template>