docs(api-server): update architecture page title

- Change page title from 'Advanced Topics' to 'Architecture Overview'
- This update provides a more accurate reflection of the page content

Author: fulleni

src/content/docs/api-server/architecture/index.mdx

@@ -1,5 +1,5 @@
 ---
-title: Advanced Topics
+title: Architecture Overview
 description: Dive deeper into the architectural patterns and advanced concepts of the API server.
 ---