docs(context-menu): update

docs/app/components/content/examples/context-menu/ContextMenuCustomSlotExample.vue

@@ -0,0 +1,28 @@
+<script setup lang="ts">
+const loading = ref(true)
+
+const items = [{
+  label: 'Refresh the Page',
+  slot: 'refresh'
+}, {
+  label: 'Clear Cookies and Refresh'
+}, {
+  label: 'Clear Cache and Refresh'
+}]
+</script>
+
+<template>
+  <UContextMenu :items="items" class="w-48">
+    <div class="flex items-center justify-center rounded-md border border-dashed border-gray-300 dark:border-gray-700 text-sm aspect-video w-72">
+      Right click here
+    </div>
+
+    <template #refresh-label>
+      {{ loading ? 'Refreshing...' : 'Refresh the Page' }}
+    </template>
+
+    <template #refresh-trailing>
+      <UIcon v-if="loading" name="i-heroicons-arrow-path-20-solid" class="shrink-0 size-5 text-primary-500 dark:text-primary-400 animate-spin" />
+    </template>
+  </UContextMenu>
+</template>