message: fix: roster notification option update
diff: @@ -459,7 +459,7 @@ export default class Roster {
  private initOptions() {
  let muteNotification = Client.getOption('notification.mute');
  this.muteNotification(muteNotification);
  - Client.getOptions().registerHook('notification', (newValue, oldValue) => {
  + Client.getOptions().registerHook('notification', (newValue = {}, oldValue = {}) => {
  if (newValue.mute !== oldValue.mute) {
  this.muteNotification(newValue.mute);
  }
  