Revert "Merge pull request #229 from xqliu/test/add-ut-infrastructure"

This reverts commit 683e77b92f, reversing
changes made to 791cecd2ff.

web/vitest.config.ts

@@ -1,9 +0,0 @@
-import { defineConfig } from 'vitest/config'
-import react from '@vitejs/plugin-react'
-
-export default defineConfig({
-  plugins: [react()],
-  test: {
-    environment: 'jsdom',
-  },
-})