test(mobile): basic e2e tests (#8031)

fix AF-1289

1. tested on 'webkit'
2. a few baseline test cases

packages/frontend/core/src/components/app-sidebar/category-divider/index.tsx

@@ -35,6 +35,7 @@ export const CategoryDivider = forwardRef(
       <div
         className={clsx(mobile ? styles.mobileRoot : styles.root, className)}
         ref={ref}
+        role="switch"
         onClick={() => setCollapsed?.(!collapsed)}
         data-mobile={mobile}
         data-collapsed={collapsed}