[ACS-6071] fix jsdoc warnings and errors (#8948)

* fix content docs

* fix extensions docs

* fix insights docs

* [ci:force] fix jsdoc errors and warnings

* enable jsdoc linter

* [ci:force] fix demo shell jsdoc

* [ci:force] fix e2e typings

* fix typo

* fix typo

lib/extensions/src/lib/services/app-extension.service.ts

@@ -54,6 +54,7 @@ export class AppExtensionService {
      * The result is filtered by the **disabled** state.
      *
      * @param key Preset key.
+     * @returns list of document list presets
      */
     getDocumentListPreset(key: string): DocumentListPresetRef[] {
         return this.extensionService
@@ -66,6 +67,8 @@ export class AppExtensionService {
     /**
      * Provides a list of the Viewer content extensions,
      * filtered by **disabled** state and **rules**.
+     *
+     * @returns list of viewer extension references
      */
     getViewerExtensions(): ViewerExtensionRef[] {
         return this.extensionService

lib/extensions/src/lib/services/extension-loader.service.ts

@@ -84,6 +84,11 @@ export class ExtensionLoaderService {
      * Filters element by **enabled** and **order** attributes.
      * Example:
      *  `getElements<ViewerExtensionRef>(config, 'features.viewer.content')`
+     *
+     * @param config configuration settings
+     * @param key element key
+     * @param fallback fallback array of values
+     * @returns list of elements
      */
     getElements<T extends ExtensionElement>(
         config: ExtensionConfig,

lib/extensions/src/lib/services/extension.service.ts

@@ -28,6 +28,11 @@ import { ExtensionElement } from '../config/extension-element';
 import { BehaviorSubject, Observable } from 'rxjs';
 
 // eslint-disable-next-line prefer-arrow/prefer-arrow-functions
+/**
+ * The default extensions factory
+ *
+ * @returns the list of extension json files
+ */
 export function extensionJsonsFactory() {
     return [];
 };
@@ -38,6 +43,12 @@ export const EXTENSION_JSONS = new InjectionToken<string[][]>('extension-jsons',
 });
 
 // eslint-disable-next-line prefer-arrow/prefer-arrow-functions
+/**
+ * Provides the extension json values for the angular modules
+ *
+ * @param jsons files to provide
+ * @returns a provider section
+ */
 export function provideExtensionConfig(jsons: string[]) {
     return {
         provide: EXTENSION_JSONS,