split between userConfig and userAccount

frontend/vite.config.ts

@@ -1,9 +1,10 @@
 import { defineConfig } from 'vite';
 import react from '@vitejs/plugin-react-swc';
+import checker from 'vite-plugin-checker';
 
 // https://vitejs.dev/config/
 export default defineConfig({
-  plugins: [react()],
+  plugins: [react(), checker({ typescript: true })],
   base: '/',
   server: {
     host: true,