message: Update the tab title preview when template changes.
diff: @@ -87,6 +87,7 @@ class EditTabTitleWidget {
  this._templateString.setTemplateString(template);
  updateFunc();
  this._ui.segments = this._templateString.getSegments();
  + this._ui.segmentHtml = this._templateString.getSegmentHtmlList();
  });
  this._ui.$on("close", () => {
  this._close();
  