chore: cn 유틸 함수 추가

Author: yewonJin

frontend/package.json

@@ -12,9 +12,11 @@
   "dependencies": {
     "@tanstack/react-query": "^5.59.19",
     "autoprefixer": "^10.4.20",
+    "clsx": "^2.1.1",
     "postcss": "^8.4.47",
     "react": "^18.3.1",
     "react-dom": "^18.3.1",
+    "tailwind-merge": "^2.5.4",
     "tailwindcss": "^3.4.14",
     "zustand": "^5.0.1"
   },

frontend/src/lib/utils.ts

@@ -0,0 +1,6 @@
+import { clsx, type ClassValue } from "clsx";
+import { twMerge } from "tailwind-merge";
+
+export function cn(...inputs: ClassValue[]) {
+  return twMerge(clsx(inputs));
+}