message: Add docs for survey.focusQuestion function
diff: @@ -6004,7 +6004,12 @@ export class SurveyModel extends SurveyElementCore
  this.setTriggerValue(name, value, false);
  }
  private isFocusingQuestion: boolean;
  - focusQuestion(name: string): boolean {
  + /**
  + * Focus question by its name. If needed change the current page on the page where question is located.
  + * Function returns false if there is no question with this name or question is invisible, otherwise it returns true.
  + * @param name question name
  + */
  + public focusQuestion(name: string): boolean {
  var question = this.getQuestionByName(name, true);
  if (!question || !question.isVisible || !question.page) return false;
  this.isFocusingQuestion = true;
  