update to tw4

package.json

@@ -93,6 +93,7 @@
     "devDependencies": {
         "@dotenvx/dotenvx": "1.32.0",
         "@esbuild-plugins/tsconfig-paths": "0.1.2",
+        "@tailwindcss/postcss": "^4.1.3",
         "@types/better-sqlite3": "7.6.12",
         "@types/cookie-parser": "1.4.8",
         "@types/cors": "2.8.17",
@@ -111,7 +112,7 @@
         "esbuild-node-externals": "1.18.0",
         "postcss": "^8",
         "react-email": "4.0.6",
-        "tailwindcss": "^3.4.17",
+        "tailwindcss": "^4.1.3",
         "tsc-alias": "1.8.10",
         "tsx": "4.19.3",
         "typescript": "^5",