docs: fix vue example

examples/nuxt-example/components/ui/stepper/StepperDescription.vue

@@ -0,0 +1,23 @@
+<script lang="ts" setup>
+import { type HTMLAttributes, computed } from 'vue'
+import type { StepperDescriptionProps } from 'radix-vue'
+import { StepperDescription, useForwardProps } from 'radix-vue'
+
+import { cn } from '@/lib/utils'
+
+const props = defineProps<StepperDescriptionProps & { class?: HTMLAttributes['class'] }>()
+
+const delegatedProps = computed(() => {
+  const { class: _, ...delegated } = props
+
+  return delegated
+})
+
+const forwarded = useForwardProps(delegatedProps)
+</script>
+
+<template>
+  <StepperDescription v-slot="slotProps" v-bind="forwarded" :class="cn('text-xs text-muted-foreground', props.class)">
+    <slot v-bind="slotProps" />
+  </StepperDescription>
+</template>