Fixes:
- Fixed a bug causing the customer to remain on the system after returning movies
- Fixed a load bug causing customers to not return movies
- Fixed a bug causing employees to destroy movies when using the recleaner
- Fixed a bug causing the recleaner to clean more than once
- Fixed a crash when updating the goal UI
- Fixed a bug causing the recleaner to clean 0 movies on load
- Smoothed performance across multiple systems
- Improved lighting performance