chore(deps): update dependency tailwindcss to v4

Author: renovate[bot]

webclient/package.json

@@ -48,7 +48,7 @@
     "postcss": "8.5.1",
     "prettier": "3.4.2",
     "prettier-plugin-tailwindcss": "0.6.11",
-    "tailwindcss": "3.4.17",
+    "tailwindcss": "4.0.1",
     "typescript": "5.7.3",
     "vue-tsc": "2.2.0"
   },