message: File: Update showPreview and allowImagesPreview descriptions
diff: @@ -93,9 +93,10 @@ export class QuestionFileModel extends Question {
  this.survey.clearFiles(this, this.name, this.value, null, () => { });
  }
  /**
  - * Specifies whether to show a preview of image files.
  + * Disable this property only to implement a custom preview.
  *
  - * Default value: `true`
  + * [View "Custom Preview" Demo](https://surveyjs.io/form-library/examples/file-custom-preview/ (linkStyle))
  + * @see allowImagesPreview
  */
  public get showPreview() {
  return this.getPropertyValue("showPreview");
  @@ -164,7 +165,7 @@ export class QuestionFileModel extends Question {
  this.setPropertyValue("waitForUpload", val);
  }
  /**
  - * Set it to false if you want to disable images preview.
  + * Specifies whether to show a preview of image files.
  */
  public get allowImagesPreview(): boolean {
  return this.getPropertyValue("allowImagesPreview");
  