Chore/#305-K: 클라이언트 번들 코드 스플리팅

Author: se030

client/vite.config.ts

@@ -1,11 +1,11 @@
 import { resolve } from 'path';
 
 import react from '@vitejs/plugin-react';
-import { defineConfig } from 'vite';
+import { defineConfig, splitVendorChunkPlugin } from 'vite';
 
 // https://vitejs.dev/config/
 export default defineConfig({
-  plugins: [react()],
+  plugins: [react(), splitVendorChunkPlugin()],
   resolve: {
     alias: [
       { find: 'src', replacement: resolve(__dirname, './src') },