Allow input for multiple teams and classes for devices

@Flak With most devices, you can set which team or class can use this device.
Currently, either only one team/class can be selected or all other teams/classes can be selected as this entry.

However, I would find it very useful if several teams and classes could be entered there (e.g. class 1 and 3)

I agree with this tbh it would deffo cut down device costs in that scenario when you wan multiple teams/class but not others

Could be like an array option rather than only 1