Space Alert Internal Threats Organiser + Card Divs

This replaced the Indicators box (for internal threat ovals) with a version that has 8 trays that can hold 5 ovals per tray. They are meant to be printed in black, white, red and yellow filament. When you e.g. start a yellow mission, you only take out the black and yellow trays which will have all the ovals you need.

I also added some card separators that you can print in red, yellow and white filament and put between the cards of those colors to make it quick to know which card to use.