Function sync_local_to_remote 

pub async fn sync_local_to_remote(
    _path: &PathBuf,
    url_in: &str,
    parents: &[String],
    _original_content: Option<String>,
    new_content: String,
    content_type: Option<String>,
    state: DaemonState,
) -> Result<()>

Logic for syncing a local file to a remote Braid URL.