docs: unlist tutorials for extensions with archived or moved servers (#5116)

documentation/docs/mcp/google-maps-mcp.md

@@ -1,6 +1,7 @@
 ---
 title: Google Maps Extension
 description: Add Google Maps MCP Server as a Goose Extension
+unlisted: true
 ---
 
 import Tabs from '@theme/Tabs';
@@ -8,6 +9,7 @@ import TabItem from '@theme/TabItem';
 import YouTubeShortEmbed from '@site/src/components/YouTubeShortEmbed';
 import GooseDesktopInstaller from '@site/src/components/GooseDesktopInstaller';
 
+Server archived
 
 This tutorial covers how to add the [Google Maps MCP Server](https://github.com/modelcontextprotocol/servers/tree/main/src/google-maps) as a Goose extension to enable geocoding, place searching, distance calculations, elevation data retrieval, and directions.