Fix an issue with due date + expiry date not setting correctly & mark as sent button issue

resources/scripts/views/invoices/View.vue

@@ -101,6 +101,7 @@ async function onMarkAsSent() {
         invoiceData.value.status = 'SENT'
         isMarkAsSent.value = true
       }
+      isMarkAsSent.value = false
     })
 }