lazy loading support for demo shell (#3871)

* breadcrumb demo

* datatable demo

* about module

* notifications module

* card view module

* config editor module

* trashcan module

* header data module

* node selector module

* custom sources module

* webscript module

* tag module

* social module

* settings module

* task list module

* process list module

* fix translation minor issue

demo-shell/src/app/components/header-data/header-data.service.ts

@@ -17,7 +17,9 @@
 
 import { Injectable, Output, EventEmitter } from '@angular/core';
 
-@Injectable()
+@Injectable({
+    providedIn: 'root'
+})
 export class HeaderDataService {
 
     show = true;