Hide Silo Filltype

This script hides fill types with a quantity of 0 when loading a trailer or device. It ensures that only fill types with available quantities are displayed when unloading from the silo into a trailer or device. All configured fill types can still be stored in the silo, but those with a quantity of 0 will remain hidden during unloading. Please note, at least one fill type must be present in the silo for this script to function.