fix: cors middleware 설정 추가

src/setupProxy.js

@@ -4,11 +4,8 @@ module.exports = function (app) {
   app.use(
     '/api',
     createProxyMiddleware({
-      target: 'http://localhost:8090',
       changeOrigin: true,
-      pathRewrite: {
+      target: 'http://localhost:8090'
-        '^/api': ''
-      }
     })
   );
 };