[ADF-2569] fix reload app.config.json (#3124)

* fix reload app.config.json

* improve style mobile
fix test

* test karma setup update

* fix core providers test

* remove unused providers

* use mock api in service test

* skip test in the wrong place

* remove comma

* remove fdescribe

lib/core/viewer/components/pdfViewer.component.spec.ts

@@ -17,11 +17,6 @@
 
 import { Component, SimpleChange, ViewChild } from '@angular/core';
 import { async, ComponentFixture, TestBed } from '@angular/core/testing';
-import {
-    AlfrescoApiService,
-    AuthenticationService,
-    SettingsService
-} from '../../services';
 import { MaterialModule } from '../../material.module';
 import { ToolbarModule } from '../../toolbar/toolbar.module';
 import { EventMock } from '../../mock/event.mock';
@@ -152,9 +147,6 @@ describe('Test PdfViewer component', () => {
                     }
                 }
                 },
-                SettingsService,
-                AuthenticationService,
-                AlfrescoApiService,
                 RenderingQueueServices
             ]
         })