Set colorscheme.

frontend/package.json

@@ -30,7 +30,6 @@
   "devDependencies": {
     "@eslint/js": "^9.36.0",
     "@react-router/dev": "^7.7.1",
-    "@tailwindcss/vite": "^4.1.4",
     "@testing-library/jest-dom": "^6.8.0",
     "@testing-library/react": "^16.3.0",
     "@types/eslint__js": "^8.42.3",
@@ -43,7 +42,6 @@
     "eslint-plugin-react-refresh": "^0.4.20",
     "jsdom": "^27.0.0",
     "prettier": "^3.6.2",
-    "tailwindcss": "^4.1.4",
     "typescript": "^5.8.3",
     "typescript-eslint": "^8.44.0",
     "vite": "^6.3.3",