Public Invoice receipt (#3612)

* Public Invoice receipt

* implement payment,s qr, better ui, and fix invoice bug

* General view updates

* Update admin details link

* Update view

* add missing check

* Refactor

* make payments and qr  shown by default
* move cusotmization options to own ReceiptOptions
* Make sure to sanitize values inside PosData partial

* Refactor

* Make sure that ReceiptOptions for the StoreData is never null, and that values are always set in API

* add receipt link to checkout and add tests

* add receipt  link to lnurl

* Use ReceiptOptions.Merge

* fix lnurl

* fix chrome

* remove i18n parameterization

* Fix swagger

* Update translations

* Fix warning

Co-authored-by: Dennis Reimann <mail@dennisreimann.de>
Co-authored-by: nicolas.dorier <nicolas.dorier@gmail.com>

BTCPayServer/Models/InvoicingModels/InvoiceReceiptViewModel.cs

@@ -0,0 +1,22 @@
+using System;
+using System.Collections.Generic;
+using BTCPayServer.Client.Models;
+using BTCPayServer.Models.PaymentRequestViewModels;
+using static BTCPayServer.Client.Models.InvoiceDataBase;
+
+namespace BTCPayServer.Models.InvoicingModels
+{
+    public class InvoiceReceiptViewModel
+    {
+        public InvoiceStatus Status { get; set; }
+        public string InvoiceId { get; set; }
+        public string OrderId { get; set; }
+        public string Currency { get; set; }
+        public string StoreName { get; set; }
+        public decimal Amount { get; set; }
+        public DateTimeOffset Timestamp { get; set; }
+        public Dictionary<string, object> AdditionalData { get; set; }
+        public ReceiptOptions ReceiptOptions { get; set; }
+        public List<ViewPaymentRequestViewModel.PaymentRequestInvoicePayment> Payments { get; set; }
+    }
+}