chore(deps): update dependency tailwindcss to v4

Author: renovate[bot]

.web/package.json

@@ -12,7 +12,7 @@
     "autoprefixer": "^10.4.13",
     "feed": "^4.2.2",
     "postcss": "^8.4.35",
-    "tailwindcss": "^3.2.4",
+    "tailwindcss": "^4.0.0",
     "vitepress": "^1.6.3",
     "vue": "^3.3.4"
   },