feat: add initial iteration of new landing page

Author: kevinjosethomas

Diff for: package-lock.json

@@ -20,7 +20,7 @@
     "chessground": "^8.3.5",
     "chroma-js": "^2.4.2",
     "exponential-backoff": "^3.1.1",
-    "framer-motion": "^11.5.6",
+    "framer-motion": "^11.18.2",
     "gray-matter": "^4.0.3",
     "lila-stockfish-web": "^0.0.7",
     "next": "15.1.6",
@@ -30,6 +30,7 @@
     "react-chartjs-2": "^5.2.0",
     "react-dom": "18.3.1",
     "react-hot-toast": "^2.5.1",
+    "react-intersection-observer": "^9.16.0",
     "react-markdown": "^9.0.3",
     "react-tooltip": "^5.28.0",
     "recharts": "^2.15.0",