feat: Add dynamic theming, map style controls, and core UI components for an interactive map experience.

package.json

@@ -17,6 +17,7 @@
   },
   "dependencies": {
     "@radix-ui/react-dialog": "^1.1.15",
+    "@radix-ui/react-dropdown-menu": "^2.1.16",
     "@radix-ui/react-scroll-area": "^1.2.10",
     "@radix-ui/react-separator": "^1.1.8",
     "@radix-ui/react-slot": "^1.2.4",
@@ -30,6 +31,7 @@
     "leaflet": "^1.9.4",
     "lucide-react": "^0.555.0",
     "next": "16.0.7",
+    "next-themes": "^0.4.6",
     "react": "19.2.1",
     "react-dom": "19.2.1",
     "react-leaflet": "^5.0.0",