Add New Scene modal default type

[jmsaavedra]

should default to the Event that you are currently looking at (currently defaults to "Default" Event)

• could also remove Event Type dropdown entirely: when you click "Add New", you are always looking at 1 Event, you should be adding to that

[piuggi]

completed via commit: https://github.com/incredibleMachines/30PP/commit/def9e0307f9b4c5c79545d7c6f0410ed25093a59