Add reveal.js dependency for presentation mode

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

Author: ofriw

website/package-lock.json

@@ -31,7 +31,8 @@
     "clsx": "^2.0.0",
     "prism-react-renderer": "^2.3.0",
     "react": "^19.0.0",
-    "react-dom": "^19.0.0"
+    "react-dom": "^19.0.0",
+    "reveal.js": "^5.2.1"
   },
   "devDependencies": {
     "@docusaurus/module-type-aliases": "3.9.2",