fix(deps): update dependency tailwindcss to v4

Author: renovate[bot]

blog/package.json

@@ -16,7 +16,7 @@
     "@astrojs/sitemap": "^3.1.6",
     "@astrojs/tailwind": "^5.1.0",  
     "astro": "^5.0.0",
-    "tailwindcss": "^3.4.10"
+    "tailwindcss": "^4.0.0"
   },
   "optionalDependencies": {
     "@esbuild/linux-x64": "^0.25.0",