Chinese grammar data manually copied and edited from <https://resources.allsetlearning.com/chinese/grammar/Main_Page>

## How it works for Android

Using Tauri, it runs on Android even with dev server down, with `tauri android run`. (while no hot-reloading)

An extra CSS is needed for Android webview fix:-

```css
body {
  padding-top: env(safe-area-inset-top);
  padding-bottom: env(safe-area-inset-bottom);
  padding-left: env(safe-area-inset-left);
  padding-right: env(safe-area-inset-right);
}
```