docs: fix vue example

examples/nuxt-example/components/ui/dropdown-menu/DropdownMenuTrigger.vue

@@ -0,0 +1,13 @@
+<script setup lang="ts">
+import { DropdownMenuTrigger, type DropdownMenuTriggerProps, useForwardProps } from 'radix-vue'
+
+const props = defineProps<DropdownMenuTriggerProps>()
+
+const forwardedProps = useForwardProps(props)
+</script>
+
+<template>
+  <DropdownMenuTrigger class="outline-none" v-bind="forwardedProps">
+    <slot />
+  </DropdownMenuTrigger>
+</template>