[frontend] use shadcn

client/vite.config.ts

@@ -1,6 +1,7 @@
+import path from "path";
+import tailwindcss from "@tailwindcss/vite"
 import { defineConfig } from "vite";
 import react from "@vitejs/plugin-react";
-import { fileURLToPath, URL } from "node:url";
 
 // https://vite.dev/config/
 export default defineConfig({
@@ -10,10 +11,11 @@ export default defineConfig({
         plugins: [["babel-plugin-react-compiler"]],
       },
     }),
+    tailwindcss()
   ],
   resolve: {
     alias: {
-      "@": fileURLToPath(new URL("./src", import.meta.url)),
+      "@": path.resolve(__dirname, "./src"),
     },
   },
 });