fix: rename mcp-gateway image to fix typo (#807)

* fix: rename mcp-gateway image to fix typo (fitler → filter)

The MDX page referenced the correct filename but the image on disk
had a typo, causing a broken image in the MCP Gateway quickstart.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

* chore: update @arcadeai/design-system to 3.29.1

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

* chore: update @arcadeai/design-system to 3.29.2

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>

Author: sdserranog

package.json

@@ -42,7 +42,7 @@
   },
   "homepage": "https://arcade.dev/",
   "dependencies": {
-    "@arcadeai/design-system": "^3.29.0",
+    "@arcadeai/design-system": "^3.29.2",
     "@mdx-js/mdx": "^3.1.1",
     "@mdx-js/react": "^3.1.1",
     "@next/third-parties": "16.0.1",