docs: fix vue example

examples/nuxt-example/components/ui/drawer/DrawerHeader.vue

@@ -0,0 +1,14 @@
+<script lang="ts" setup>
+import type { HtmlHTMLAttributes } from 'vue'
+import { cn } from '@/lib/utils'
+
+const props = defineProps<{
+  class?: HtmlHTMLAttributes['class']
+}>()
+</script>
+
+<template>
+  <div :class="cn('grid gap-1.5 p-4 text-center sm:text-left', props.class)">
+    <slot />
+  </div>
+</template>