Function execute_async

pub async fn execute_async(
    command: &str,
    folder: Option<&str>,
    stdout_fn: impl Fn(String) + Send + Sync + 'static,
    stderr_fn: impl Fn(String) + Send + Sync + 'static,
    complete_fn: impl Fn() + Send + Sync + 'static,
) -> Result<bool>