chore(deps): update nextjs monorepo to v14

Signed-off-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

packages/react-app/package.json

@@ -20,7 +20,7 @@
         "blind-threshold-bls": "https://github.com/celo-org/blind-threshold-bls-wasm#3d1013af",
         "dotenv": "^16.0.3",
         "ethers": "^5.7.2",
-        "next": "13.2.4",
+        "next": "14.2.1",
         "next-auth": "^4.22.1",
         "react": "18.2.0",
         "react-dom": "18.2.0",
@@ -34,7 +34,7 @@
         "@types/react-dom": "18.0.11",
         "autoprefixer": "^10.4.14",
         "eslint": "8.36.0",
-        "eslint-config-next": "13.2.4",
+        "eslint-config-next": "14.2.1",
         "postcss": "^8.4.21",
         "tailwindcss": "^3.2.7",
         "typescript": "4.9.5"