docs: fix vue example

examples/nuxt-example/components/ui/dialog/Dialog.vue

@@ -0,0 +1,14 @@
+<script setup lang="ts">
+import { DialogRoot, type DialogRootEmits, type DialogRootProps, useForwardPropsEmits } from 'radix-vue'
+
+const props = defineProps<DialogRootProps>()
+const emits = defineEmits<DialogRootEmits>()
+
+const forwarded = useForwardPropsEmits(props, emits)
+</script>
+
+<template>
+  <DialogRoot v-bind="forwarded">
+    <slot />
+  </DialogRoot>
+</template>