Website: update /ai page's meta title (#49661)

Changes:
- Updated the meta title of the /ai page (AI in IT » AI-powered IT)

<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->

## Summary by CodeRabbit

* **Documentation**
* Updated the AI page’s metadata title to “AI-powered IT” for improved
page labeling.

<!-- end of auto-generated comment: release notes by coderabbit.ai -->

website/config/routes.js

@@ -638,7 +638,7 @@ module.exports.routes = {
   'GET /ai': {
     action: 'view-ai-in-it',
     locals: {
-      pageTitleForMeta: 'AI in IT',
+      pageTitleForMeta: 'AI-powered IT',
       pageDescriptionForMeta: 'AI in IT means more than answering questions. See how Fleet lets AI safely make changes across your fleet, with you in control.',
       currentSection: 'platform',
     }