Code review: added 'edge' in AssetScope, refactored assets-table-config.resolver…

….ts for edge's assets title

@@ -35,7 +35,7 @@ export class AssetComponent extends EntityComponent<AssetInfo> {
 
   entityType = EntityType;
 
-  assetScope: 'tenant' | 'customer' | 'customer_user';
+  assetScope: 'tenant' | 'customer' | 'customer_user' | 'edge';
 
   constructor(protected store: Store<AppState>,
               protected translate: TranslateService,

@@ -137,8 +137,9 @@ export class AssetsTableConfigResolver implements Resolve<EntityTableConfig<Asse
             this.config.tableTitle = parentCustomer.title + ': ' + this.translate.instant('asset.assets');
           }
         } else if (this.config.componentsData.assetScope === 'edge') {
-          this.edgeService.getEdge(this.edgeId).pipe(map(edge =>
-            this.config.tableTitle = edge.name + ': ' + this.translate.instant('asset.assets'))).subscribe();
+          this.edgeService.getEdge(this.edgeId).subscribe(
+            edge => this.config.tableTitle = edge.name + ': ' + this.translate.instant('asset.assets')
+          );
         } else {
           this.config.tableTitle = this.translate.instant('asset.assets');
         }