fixed core and shared module usage, lazy loading modules

src/app/core/core.module.ts

@@ -4,7 +4,6 @@ import { CommonModule } from '@angular/common';
 import { SharedModule } from '../shared/shared.module';
 
 import { isNotEmpty } from '../shared/empty.util';
-import { FooterComponent } from './footer/footer.component';
 import { DSpaceRESTv2Service } from './dspace-rest-v2/dspace-rest-v2.service';
 import { ObjectCacheService } from './cache/object-cache.service';
 import { ResponseCacheService } from './cache/response-cache.service';
@@ -19,31 +18,41 @@ import { EffectsModule } from '@ngrx/effects';
 import { StoreModule } from '@ngrx/store';
 import { coreReducers } from './core.reducers';
 
+import { ApiService } from '../shared/api.service';
+
+import { HostWindowService } from '../shared/host-window.service';
+import { NativeWindowFactory, NativeWindowService } from '../shared/window.service';
+
+import { ServerResponseService } from '../shared/server-response.service';
+
 const IMPORTS = [
   CommonModule,
-  SharedModule,
-  StoreModule.forFeature('core', coreReducers, { }),
+  StoreModule.forFeature('core', coreReducers, {}),
   EffectsModule.forFeature(coreEffects)
 ];
 
 const DECLARATIONS = [
-  FooterComponent
+
 ];
 
 const EXPORTS = [
-  FooterComponent
+
 ];
 
 const PROVIDERS = [
+  ApiService,
   CommunityDataService,
   CollectionDataService,
-  ItemDataService,
   DSpaceRESTv2Service,
+  HostWindowService,
+  ItemDataService,
   ObjectCacheService,
   PaginationComponentOptions,
   ResponseCacheService,
   RequestService,
-  RemoteDataBuildService
+  RemoteDataBuildService,
+  ServerResponseService,
+  { provide: NativeWindowService, useFactory: NativeWindowFactory }
 ];
 
 @NgModule({