Add a "deprecated" tag to API properties related to themes in the Preview tab

Author: RomanTsukanov

packages/survey-creator-core/src/creator-base.ts

@@ -1193,16 +1193,11 @@ export class SurveyCreatorModel extends Base
   public get showSimulatorInPreviewTab(): boolean { return this.showSimulatorInTestSurveyTab; }
   public set showSimulatorInPreviewTab(val: boolean) { this.showSimulatorInTestSurveyTab = val; }
   /**
-   * A [UI theme](https://surveyjs.io/Documentation/Library?id=get-started-react#configure-styles) used to display the survey in the Preview tab.
-   *
-   * Accepted values: `"default"`
-   *
-   * Default value: `"default"`
-   * @see previewAllowSelectTheme
+   * @deprecated Survey Creator no longer supports switching between UI themes in the Preview tab.
    */
   public previewTheme: string = "default";
   /**
-   * @deprecated Use the [`previewTheme`](https://surveyjs.io/survey-creator/documentation/api-reference/survey-creator#previewTheme) property instead.
+   * @deprecated Survey Creator no longer supports switching between UI themes in the Preview tab.
    */
   public get themeForPreview() { return this.previewTheme; }
   public set themeForPreview(val) { this.previewTheme = val; }
@@ -1365,16 +1360,11 @@ export class SurveyCreatorModel extends Base
   public set showInvisibleElementsInPreviewTab(val: boolean) { this.showInvisibleElementsInTestSurveyTab = val; }
 
   /**
-   * Specifies whether users can switch between UI themes in the Preview tab.
-   *
-   * Default value: `true`
-   *
-   * [View Demo](https://surveyjs.io/Examples/Creator?id=theme-switcher (linkStyle))
-   * @see previewTheme
+   * @deprecated Survey Creator no longer supports switching between UI themes in the Preview tab.
    */
   public previewAllowSelectTheme = true;
   /**
-   * @deprecated Use the [`previewAllowSelectTheme`](https://surveyjs.io/survey-creator/documentation/api-reference/survey-creator#previewAllowSelectTheme) property instead.
+   * @deprecated Survey Creator no longer supports switching between UI themes in the Preview tab.
    */
   get allowChangeThemeInPreview() { return this.previewAllowSelectTheme; }
   set allowChangeThemeInPreview(val) { this.previewAllowSelectTheme = val; }

packages/survey-creator-core/src/creator-options.ts

@@ -135,15 +135,11 @@ export interface ICreatorOptions {
    */
   showPagesInPreviewTab?: boolean;
   /**
-   * A [UI theme](https://surveyjs.io/Documentation/Library?id=get-started-react#configure-styles) used to display the survey in the Preview tab.
-   *
-   * Accepted values: `"default"`
-   *
-   * Default value: `"default"`
+   * @deprecated Survey Creator no longer supports switching between UI themes in the Preview tab.
    */
   previewTheme?: string;
   /**
-   * @deprecated Use the [`previewTheme`](https://surveyjs.io/survey-creator/documentation/api-reference/icreatoroptions#previewTheme) property instead.
+   * @deprecated Survey Creator no longer supports switching between UI themes in the Preview tab.
    */
   themeForPreview?: string;
   /**
@@ -293,15 +289,11 @@ export interface ICreatorOptions {
    */
   maxNestedPanels?: number;
   /**
-   * Specifies whether users can switch between UI themes in the Preview tab.
-   *
-   * Default value: `true`
-   *
-   * [View Demo](https://surveyjs.io/Examples/Creator?id=theme-switcher (linkStyle))
+   * @deprecated Survey Creator no longer supports switching between UI themes in the Preview tab.
    */
   previewAllowSelectTheme?: boolean;
   /**
-   * @deprecated Use the [`previewAllowSelectTheme`](https://surveyjs.io/survey-creator/documentation/api-reference/icreatoroptions#previewAllowSelectTheme) property instead.
+   * @deprecated Survey Creator no longer supports switching between UI themes in the Preview tab.
    */
   allowChangeThemeInPreview?: boolean;
   /**