update vitest setup

react-advanced-tag1/vite.config.ts

@@ -1,7 +1,11 @@
-import { defineConfig } from 'vite'
+import { defineConfig, UserConfig } from 'vite'
 import react from '@vitejs/plugin-react'
 
 // https://vite.dev/config/
 export default defineConfig({
   plugins: [react()],
-})
+  test: {
+    // 👋 add the line below to add jsdom to vite
+    environment: 'jsdom',
+  }
+} as UserConfig)