Use of clone in get_root

lib.rs
```rust
struct BtnifyState<S> {
    buttons_map: HashMap<String, Box<dyn (Fn(&S) -> ButtonResponse) + Send + Sync>>,
    user_state: S,
    page: Html<String>
}

/* ... */

async fn get_root<S: Send + Sync>(State(state): State<Arc<BtnifyState<S>>>) -> Html<String> {
    // TODO: DONT USE CLONE
    state.page.clone()
}
```

Clone is efficient.