Fix server crash when the seed extractor is used on the dev map (#33312)

handle event when using seed extractor

Co-authored-by: slarticodefast <161409025+slarticodefast@users.noreply.github.com>

Content.Server/Botany/Systems/SeedExtractorSystem.cs

@@ -38,6 +38,7 @@ public sealed class SeedExtractorSystem : EntitySystem
             args.User, PopupType.Medium);
 
         QueueDel(args.Used);
+        args.Handled = true;
 
         var amount = _random.Next(seedExtractor.BaseMinSeeds, seedExtractor.BaseMaxSeeds + 1);
         var coords = Transform(uid).Coordinates;