[ACA-805] about screen enhancements (#813)

* upgrade to latest adf-extensions

* switch to ADF RepositoryState

* show extensions on About page, i18n fixes

* update docs

* cleanup about styles

* greatly simplify app dependencies rendering

* fix linting

* fix tests

src/app/extensions/extension.service.ts

@@ -26,7 +26,7 @@
 import { Injectable, Type } from '@angular/core';
 import { Store } from '@ngrx/store';
 import { Route } from '@angular/router';
-import { AppStore, RepositoryState } from '../store/states';
+import { AppStore } from '../store/states';
 import { ruleContext } from '../store/selectors/app.selectors';
 import { NodePermissionService } from '../services/node-permission.service';
 import {
@@ -46,15 +46,20 @@ import {
   reduceEmptyMenus,
   ExtensionService,
   ProfileState,
-  mergeObjects
+  mergeObjects,
+  RepositoryState,
+  ExtensionRef
 } from '@alfresco/adf-extensions';
 import { AppConfigService } from '@alfresco/adf-core';
 import { DocumentListPresetRef } from './document-list.extensions';
+import { BehaviorSubject, Observable } from 'rxjs';
 
 @Injectable({
   providedIn: 'root'
 })
 export class AppExtensionService implements RuleContext {
+  private _references = new BehaviorSubject<ExtensionRef[]>([]);
+
   defaults = {
     layout: 'app.layout.main',
     auth: ['app.auth']
@@ -97,6 +102,8 @@ export class AppExtensionService implements RuleContext {
   profile: ProfileState;
   repository: RepositoryState;
 
+  references$: Observable<ExtensionRef[]>;
+
   constructor(
     private store: Store<AppStore>,
     private loader: ExtensionLoaderService,
@@ -104,6 +111,8 @@ export class AppExtensionService implements RuleContext {
     public permissions: NodePermissionService,
     private appConfig: AppConfigService
   ) {
+    this.references$ = this._references.asObservable();
+
     this.store.select(ruleContext).subscribe(result => {
       this.selection = result.selection;
       this.navigation = result.navigation;
@@ -174,6 +183,11 @@ export class AppExtensionService implements RuleContext {
       trashcan: this.getDocumentListPreset(config, 'trashcan'),
       searchLibraries: this.getDocumentListPreset(config, 'search-libraries')
     };
+
+    const references = (config.$references || [])
+      .filter(entry => typeof entry === 'object')
+      .map(entry => <ExtensionRef>entry);
+    this._references.next(references);
   }
 
   protected loadNavBar(config: ExtensionConfig): Array<NavBarGroupRef> {