* Editorconfig: Add space_before_self_closing setting
This was a difference between the way dotnet-format and Rider format code. See https://www.jetbrains.com/help/rider/EditorConfig_Index.html
* Editorconfig: Keep 4 spaces indentation for Swagger JSON files
They are all formatted that way, let's keep it like that.
* Apply dotnet-format, mostly white-space related changes
* Payjoin label fixes
* When a payjoin label was applied, coin selection filter would not work
* When a payjoin happened with a receive address wallet, the payjoin label was not applied
* Coin selection shows when a utxo is currently reserved for a payjoin. Applies both to UI and to GF API
* remove reserved label
* Update BTCPayServer/Payments/PayJoin/PayJoinEndpointController.cs
