fix(client): update on close holding

apps/client/src/app/components/holding-detail-dialog/holding-detail-dialog.component.ts

@@ -562,7 +562,7 @@ export class GfHoldingDetailDialogComponent implements OnDestroy, OnInit {
     const today = new Date();
 
     const activity: CreateOrderDto = {
-      accountId: null,
+      accountId: this.accounts.length === 1 ? this.accounts[0].id : null,
       comment: null,
       currency: this.SymbolProfile.currency,
       dataSource: this.SymbolProfile.dataSource,
@@ -575,7 +575,10 @@ export class GfHoldingDetailDialogComponent implements OnDestroy, OnInit {
       unitPrice: this.marketPrice
     };
 
-    this.dataService.postOrder(activity).subscribe(() => {
+    this.dataService
+      .postOrder(activity)
+      .pipe(takeUntil(this.unsubscribeSubject))
+      .subscribe(() => {
         this.router.navigate(
           internalRoutes.portfolio.subRoutes.activities.routerLink
         );