Update nextjs monorepo to v16

Author: renovate[bot]

package.json

@@ -31,7 +31,7 @@
     "@mui/material": "^7.3.4",
     "@mui/material-nextjs": "^7.3.3",
     "@neondatabase/serverless": "^1.0.0",
-    "@next/third-parties": "^15.2.2",
+    "@next/third-parties": "^16.0.0",
     "@prisma/adapter-neon": "^6.3.1",
     "@prisma/client": "^6.3.1",
     "@radix-ui/react-avatar": "^1.1.3",
@@ -57,7 +57,7 @@
     "date-fns": "^4.1.0",
     "dotenv": "17.2.3",
     "lucide-react": "^0.546.0",
-    "next": "^15.2.2",
+    "next": "^16.0.0",
     "next-auth": "^5.0.0-beta.25",
     "next-nprogress-bar": "^2.4.7",
     "next-themes": "^0.4.4",
@@ -96,7 +96,7 @@
     "@types/ws": "^8.5.14",
     "cross-env": "^10.0.0",
     "eslint": "^9",
-    "eslint-config-next": "15.5.6",
+    "eslint-config-next": "16.0.0",
     "jest": "^30.0.0",
     "jest-environment-node": "^30.0.0-beta.3",
     "postcss": "^8",