Tutorial, Bug Fix and Optimization

Added a section explaining the basic mechanics at the beginning of the game
Fixed some bugs in the donut production area
Solved the issue of not being able to put the tray in place in the donut production area
Solved the issue where the cabinets would sometimes fit into the glass and wall
There were people who had problems finishing the day with the car at the end of the day. We made a fix for this and fixed the issue