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.Tests/SeleniumTester.cs

@@ -86,9 +86,19 @@ namespace BTCPayServer.Tests
             Driver.AssertNoError();
         }
 
-        public void PayInvoice()
+        public void PayInvoice(bool mine = false)
         {
             Driver.FindElement(By.Id("FakePayment")).Click();
+            if (mine)
+            {
+                MineBlockOnInvoiceCheckout();
+            }
+        }
+
+        public void MineBlockOnInvoiceCheckout()
+        {
+            Driver.FindElement(By.CssSelector("#mine-block button")).Click();
+
         }
 
         /// <summary>