feat: add new theme berry (#860)

* feat: add theme berry

* docs: add development notes

* fix: fix blank page

* chore: update implementation

* fix: fix package.json

* chore: update ui copy

---------

Co-authored-by: JustSong <songquanpeng@foxmail.com>

web/berry/src/index.js

@@ -0,0 +1,31 @@
+import { createRoot } from 'react-dom/client';
+
+// third party
+import { BrowserRouter } from 'react-router-dom';
+import { Provider } from 'react-redux';
+
+// project imports
+import * as serviceWorker from 'serviceWorker';
+import App from 'App';
+import { store } from 'store';
+
+// style + assets
+import 'assets/scss/style.scss';
+import config from './config';
+
+// ==============================|| REACT DOM RENDER  ||============================== //
+
+const container = document.getElementById('root');
+const root = createRoot(container); // createRoot(container!) if you use TypeScript
+root.render(
+  <Provider store={store}>
+    <BrowserRouter basename={config.basename}>
+      <App />
+    </BrowserRouter>
+  </Provider>
+);
+
+// If you want your app to work offline and load faster, you can change
+// unregister() to register() below. Note this comes with some pitfalls.
+// Learn more about service workers: https://bit.ly/CRA-PWA
+serviceWorker.register();