docs: fix vue example

examples/nuxt-example/components/ui/table/TableFooter.vue

@@ -0,0 +1,14 @@
+<script setup lang="ts">
+import type { HTMLAttributes } from 'vue'
+import { cn } from '@/lib/utils'
+
+const props = defineProps<{
+  class?: HTMLAttributes['class']
+}>()
+</script>
+
+<template>
+  <tfoot :class="cn('border-t bg-muted/50 font-medium [&>tr]:last:border-b-0', props.class)">
+    <slot />
+  </tfoot>
+</template>