feat: Add PWA support and implement drag-and-drop functionality for deck building.

src/package.json

@@ -11,13 +11,17 @@
     "start": "NODE_ENV=production tsx server/index.ts"
   },
   "dependencies": {
+    "@dnd-kit/core": "^6.3.1",
+    "@dnd-kit/sortable": "^10.0.0",
+    "@dnd-kit/utilities": "^3.2.2",
     "express": "^4.21.2",
     "lucide-react": "^0.475.0",
     "react": "^19.0.0",
     "react-dom": "^19.0.0",
     "socket.io": "^4.8.1",
     "socket.io-client": "^4.8.1",
-    "tsx": "^4.19.2"
+    "tsx": "^4.19.2",
+    "vite-plugin-pwa": "^1.2.0"
   },
   "devDependencies": {
     "@types/express": "^4.17.21",
@@ -32,4 +36,4 @@
     "typescript": "^5.7.2",
     "vite": "^6.0.3"
   }
-}
+}