docs(toast): update

docs/app/components/content/examples/toast/ToastExample.vue

@@ -0,0 +1,18 @@
+<script setup lang="ts">
+const toast = useToast()
+
+function addToCalendar() {
+  const eventDate = new Date(Date.now() + Math.random() * 31536000000)
+  const formattedDate = eventDate.toLocaleDateString('en-US', { month: 'short', day: 'numeric', year: 'numeric' })
+
+  toast.add({
+    title: 'Event added to calendar',
+    description: `This event is scheduled for ${formattedDate}.`,
+    icon: 'i-heroicons-calendar-days'
+  })
+}
+</script>
+
+<template>
+  <UButton label="Add to calendar" color="gray" variant="outline" icon="i-heroicons-plus" @click="addToCalendar" />
+</template>