docs: fix styles and add algolia search classes (#12267)

* fix styles and add angolia search classes

* add class

* fix black

docs/src/components/DoczMenu.tsx

@@ -31,6 +31,7 @@ export default () => {
       mode="inline"
       defaultOpenKeys={[openKey]}
       defaultSelectedKeys={[selectedKey]}
+      className="docSearch-sidebar"
     >
       {menus.map((menuItem) => {
         if (menuItem.menu?.length > 0) {