Quickfix update 0.5.3 released

Quickfixes

• Removed: an internal drone configuration blueprint that was meant as a test setup.
• Fixed: several broken skins were exposed on all propellers. These have been removed.
• Fixed: sharing drones on the Steam Workshop are now properly working.
• Fixed: the propeller damage display doesn't throw any more errors.
• Fixed: toggling the game options for race guides and race triggers now reflect in real-time.