docs: fix vue example

examples/nuxt-example/components/ui/toggle-group/ToggleGroupItem.vue

@@ -0,0 +1,35 @@
+<script setup lang="ts">
+import type { VariantProps } from 'class-variance-authority'
+import { type HTMLAttributes, computed, inject } from 'vue'
+import { ToggleGroupItem, type ToggleGroupItemProps, useForwardProps } from 'radix-vue'
+import { toggleVariants } from '@/components/ui/toggle'
+import { cn } from '@/lib/utils'
+
+type ToggleGroupVariants = VariantProps<typeof toggleVariants>
+
+const props = defineProps<ToggleGroupItemProps & {
+  class?: HTMLAttributes['class']
+  variant?: ToggleGroupVariants['variant']
+  size?: ToggleGroupVariants['size']
+}>()
+
+const context = inject<ToggleGroupVariants>('toggleGroup')
+
+const delegatedProps = computed(() => {
+  const { class: _, variant, size, ...delegated } = props
+  return delegated
+})
+
+const forwardedProps = useForwardProps(delegatedProps)
+</script>
+
+<template>
+  <ToggleGroupItem
+    v-bind="forwardedProps" :class="cn(toggleVariants({
+      variant: context?.variant || variant,
+      size: context?.size || size,
+    }), props.class)"
+  >
+    <slot />
+  </ToggleGroupItem>
+</template>