Use new UI (#8983)

* fixup build

* swap frontends

web/src/main.tsx

@@ -1,8 +1,10 @@
-import { render } from 'preact'
-import App from './app'
-import { ApiProvider } from './api';
+import React from 'react'
+import ReactDOM from 'react-dom/client'
+import App from './App.tsx'
 import './index.css'
 
-render(<ApiProvider>
+ReactDOM.createRoot(document.getElementById('root')!).render(
+  <React.StrictMode>
     <App />
-  </ApiProvider>, document.getElementById('app') as HTMLElement)
+  </React.StrictMode>,
+)