chore: remove contentlayer configuration and dependencies from package.json and pnpm-lock.yaml

Author: Crokily

contentlayer.config.ts

@@ -26,10 +26,8 @@
     "@types/react": "^19.1.12",
     "@types/react-dom": "^19.1.9",
     "autoprefixer": "^10.4.21",
-    "contentlayer": "^0.3.4",
     "eslint": "^9.35.0",
     "eslint-config-next": "^15.5.3",
-    "next-contentlayer": "^0.3.4",
     "postcss": "^8.5.6",
     "tailwindcss": "^4.1.13",
     "tw-animate-css": "^1.3.8",