message: Survey.state description updated in API
diff: @@ -2480,11 +2480,12 @@ export class SurveyModel
  /**
  * Returns the current survey state:
  *
  - * - `loading` - loading from the JSON,
  - * - `completed` - a user has completed the survey,
  - * - `starting` - the started page is showing,
  - * - `running` - a user answers questions right now,
  - * - `empty` - there is nothing to show in the current survey.
  + * - `loading` - the survey is being loaded from JSON,
  + * - `empty` - there is nothing to display in the current survey,
  + * - `starting` - the survey's start page is displayed,
  + * - `running` - a respondent is answering survey questions right now,
  + * - `preview` - a respondent is previewing answered questions before submitting the survey (see [example]{@link https://surveyjs.io/Examples/Library?id=survey-showpreview}),
  + * - `completed` - a respondent has completed the survey and submitted the results.
  */
  public get state(): string {
  if (this.isLoading) return "loading";
  