fix: packages/synapse-interface/package.json to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-JS-CROSSSPAWN-8303230
- https://snyk.io/vuln/SNYK-JS-NANOID-8492085

packages/synapse-interface/package.json

@@ -74,7 +74,7 @@
     "swr": "1.3.0",
     "tailwind-merge": "^1.10.0",
     "tailwind-scrollbar-hide": "^1.1.7",
-    "tailwindcss": "^3.4.1",
+    "tailwindcss": "^4.0.0",
     "tailwindcss-border-gradient-radius": "^3.0.1",
     "typescript": "5.1.6",
     "use-persisted-state": "^0.3.3",