Refactor code structure for improved readability and maintainability

package.json

@@ -6,7 +6,7 @@
     "dev": "next dev",
     "build": "next build",
     "start": "next start",
-    "lint": "next lint"
+    "lint": "eslint ."
   },
   "dependencies": {
     "@base-ui/react": "^1.4.1",
@@ -28,7 +28,7 @@
     "dexie-react-hooks": "^4.4.0",
     "framer-motion": "^11.18.2",
     "lucide-react": "^1.14.0",
-    "next": "^15.1.6",
+    "next": "^16.2.6",
     "next-themes": "^0.4.6",
     "radix-ui": "^1.4.3",
     "react": "^19.0.0",
@@ -49,7 +49,7 @@
     "@types/uuid": "^10.0.0",
     "autoprefixer": "^10.4.20",
     "eslint": "^9.18.0",
-    "eslint-config-next": "^15.1.6",
+    "eslint-config-next": "^16.2.6",
     "postcss": "^8.5.1",
     "tailwindcss": "^3.4.17",
     "typescript": "^5.7.3"