Landing gear does not retract when the start extended box is unchecked

@PhilipTarpley thanks :)

@Mod @Mostly @pedro16797 Thanks for the feedback, I have made changes for the next release that will retract the landing gear in the designer when "Start Extended" is unchecked.

@PhilipTarpley you can make it work like solar panels in the designer

@PhilipTarpley I kind of thought it would follow the same logic as the cargo bay. You can open it to see the open angle, but when you un-tick the start extended box you can also see how it looks retracted.

@PhilipTarpley I think it'd be nice to be able to see the gear retracted in the designer so you can see how well it fits in with the overall design. Sometimes there is a small edge in a fuselage that you can't tell will clip through the doors until you launch and retract the gear yourself. This has happened a few times with me already, and it does get frustrating after a while!

This is by design, because how would you view the results of the changes you are making to the landing gear if it is retracted in the designer?