message: docs(core): remove experimental tag
  PR Close
diff: @@ -23,10 +23,8 @@ export declare const APP_BOOTSTRAP_LISTENER: InjectionToken<((compRef: Component
  /** @experimental */
  export declare const APP_ID: InjectionToken<string>;
  -/** @experimental */
  export declare const APP_INITIALIZER: InjectionToken<(() => void)[]>;
  -/** @experimental */
  export declare class ApplicationInitStatus {
  readonly done: boolean;
  readonly donePromise: Promise<any>;
  