Changes to MailSendService

originally we had the trader id -> then used a method to get the EnumValue as a string -> then later turned it BACK into a traderId

unless im missing something major this should simplify things?

example:
we took "6617beeaa9cfa777ca915b7c" and turned it to "Ref" to then turn it back to "6617beeaa9cfa777ca915b7c"

Libraries/SPTarkov.Server.Core/Services/LocationLifecycleService.cs

@@ -513,7 +513,7 @@ public class LocationLifecycleService
         // Send message from fence giving player reward generated above
         _mailSendService.SendLocalisedNpcMessageToPlayer(
             sessionId,
-            _traderHelper.GetValidTraderIdByEnumValue(Traders.FENCE),
+            Traders.FENCE,
             MessageType.MESSAGE_WITH_ITEMS,
             _randomUtil.GetArrayValue(_traderConfig.Fence.CoopExtractGift.MessageLocaleIds),
             mailableLoot,
@@ -1137,7 +1137,7 @@ public class LocationLifecycleService
         // Send the items to the player
         _mailSendService.SendLocalisedNpcMessageToPlayer(
             sessionId,
-            _traderHelper.GetValidTraderIdByEnumValue(traderId),
+            traderId,
             MessageType.BTR_ITEMS_DELIVERY,
             messageId,
             items,