Lots of bug corrections

WIP - still lots left

ModernKeePass.Domain/Entities/BaseEntity.cs

@@ -7,6 +7,7 @@ namespace ModernKeePass.Domain.Entities
         public string Id { get; set; }
         public string Name { get; set; }
         public GroupEntity Parent { get; set; }
+        public string ParentId { get; set; }
         public DateTimeOffset LastModificationDate { get; set; }
     }
 }