Fix application data handling

/// Start the server based on the passed `Config`.

pub async fn run(cfg: Config) -> Result<(), anyhow::Error> {

    let rooms = Rooms::new().start();

    let rooms = web::Data::new(rooms);

    let cfg = web::Data::new(cfg);

    let cfg_clone = cfg.clone();

    let server = HttpServer::new(move || {

        App::new()

            .data(cfg_clone.clone())

            .data(rooms.clone())

            .app_data(cfg_clone.clone())

            .app_data(rooms.clone())

            .route("/", web::get().to(index))

            .route("/ws/{mode:(publish|subscribe)}", web::get().to(ws))

            .route("/static/{filename:.*}", web::get().to(static_file))