chore: update tailwindcss to v4, remove sass, use vite plugin for tailwindcss

package.json

@@ -10,14 +10,12 @@
   },
   "dependencies": {
     "@heroicons/react": "^2.2.0",
+    "@tailwindcss/vite": "^4.1.11",
     "@use-it/event-listener": "^0.1.7",
-    "autoprefixer": "^10.4.21",
     "chance": "^1.1.13",
-    "postcss": "^8.5.6",
     "react": "^19.1.1",
     "react-dom": "^19.1.1",
-    "sass": "^1.90.0",
-    "tailwindcss": "^3.4.17",
+    "tailwindcss": "^4.1.11",
     "usehooks-ts": "^3.1.1"
   },
   "devDependencies": {