Custodian withdrawal support + Some refactoring and cleanup (#4085)

* Renamed "WithdrawAsync" to "WithdrawToStoreWalletAsync"

* WIP

* WIP withdrawal + Refactored Form saving to JObject

* WIP

* Form to fix bad values during withdrawing appears correctly

* WIP

* Lots of cleanup and refactoring + Password field and toggle password view

* Cleanup + Finishing touches on withdrawals

* Added "Destination" dummy text as this is always the destination.

* Fixed broken test

* Added support for withdrawing using qty as a percentage if it ends with "%". Needs more testing.

* Fixed broken build

* Fixed broken build (2)

* Update BTCPayServer/wwwroot/swagger/v1/swagger.template.custodians.json

Co-authored-by: d11n <mail@dennisreimann.de>

* Update BTCPayServer/wwwroot/swagger/v1/swagger.template.custodians.json

Co-authored-by: d11n <mail@dennisreimann.de>

* Improved unit tests

* Fixed swagger bug

* Test improvements

Make string conversion of quantity explicitely.

* Fix build warnings

* Swagger: Add missing operationId

* Made change Dennis requested

* Removed unused file

* Removed incorrect comment

* Extra contructor

* Renamed client methods

* Cleanup config before saving

* Fixed broken controller

* Refactor custodian

* Fix build

* Make decimal fields strings to match the rest of Greenfield

* Improve parsing of % quantities

---------

Co-authored-by: d11n <mail@dennisreimann.de>
Co-authored-by: nicolas.dorier <nicolas.dorier@gmail.com>

BTCPayServer.Client/Models/LedgerEntryData.cs

@@ -1,3 +1,4 @@
+using BTCPayServer.JsonConverters;
 using Newtonsoft.Json;
 using Newtonsoft.Json.Converters;
 
@@ -6,6 +7,7 @@ namespace BTCPayServer.Client.Models;
 public class LedgerEntryData
 {
     public string Asset { get; }
+    [JsonConverter(typeof(NumericStringJsonConverter))]
     public decimal Qty { get; }
 
     [JsonConverter(typeof(StringEnumConverter))]