Fix: Error messages were not properly captured in the frontend.

Feature: F5,6,7 to change between Receipt, Payment and Journal voucher.

overlord/src/app/payment/payment.component.ts

@@ -132,6 +132,27 @@ export class PaymentComponent implements OnInit, AfterViewInit {
     this.dateElement.nativeElement.select();
   }
 
+  @HostListener('window:keydown.f5', ['$event'])
+  redirectToPayment(event: KeyboardEvent) {
+    event.preventDefault();
+  }
+
+  @HostListener('window:keydown.f6', ['$event'])
+  redirectToReciept(event: KeyboardEvent) {
+    event.preventDefault();
+    this.router.navigate(['receipt'], {
+      queryParams: {
+        a: this.form.controls.paymentAccount.value,
+      },
+    });
+  }
+
+  @HostListener('window:keydown.f7', ['$event'])
+  redirectToJournal(event: KeyboardEvent) {
+    event.preventDefault();
+    this.router.navigate(['journal']);
+  }
+
   @HostListener('window:keydown.control.s', ['$event'])
   saveListner(event: KeyboardEvent) {
     event.preventDefault();