* 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
