docs(tabs): update

docs/app/components/content/examples/tabs/TabsContentSlotExample.vue

@@ -0,0 +1,20 @@
+<script setup lang="ts">
+const items = [
+  {
+    label: 'Account',
+    icon: 'i-heroicons-user'
+  },
+  {
+    label: 'Password',
+    icon: 'i-heroicons-lock-closed'
+  }
+]
+</script>
+
+<template>
+  <UTabs :items="items">
+    <template #content="{ item }">
+      <p>This is the {{ item.label }} tab.</p>
+    </template>
+  </UTabs>
+</template>