Function RefreshControl 

fn RefreshControl(props: RefreshControlProps) -> impl IntoView

刷新控件：自动刷新间隔与「立即刷新」。自动刷新时圆点呼吸。

Required Props

• refresh_ms: [RwSignal<Option<u32>>]
• loading: impl Into<Signal<bool>>
• on_refresh: impl Into<Callback<()>>