refactor(Infrastructure): update Executor, Migrations and Repositories to be compiled only in .NET

EnvelopeGenerator.Infrastructure/Repositories/EnvelopeHistoryRepository.cs

@@ -1,4 +1,5 @@
-using DigitalData.Core.Infrastructure;
+#if NET
+using DigitalData.Core.Infrastructure;
 using EnvelopeGenerator.Domain.Entities;
 using Microsoft.EntityFrameworkCore;
 using EnvelopeGenerator.Domain.Constants;
@@ -47,4 +48,5 @@ public class EnvelopeHistoryRepository : CRUDRepository<History, long, EGDbConte
         status: status,
         withSender: withSender,
         withReceiver: withReceiver).ToListAsync();
-}
+}
+#endif