Alternative Backplate for Core One ESP32 Camera Case

This is a remix of the backplate of @Rainer's Core One ESP32 Camera Case. The original backplate requires 8x3mm disc magnets, which I don't have and didn't want to buy, since I had some 10x2mm magnets left.

This alternative backplate is designed with rectangular slots, which allows for a variety of different size magnets to be used as long as they are 2mm thick. Furthermore, the slot design doesn't require glueing compared to the original.

For the other parts required to build the case, please visit the original model.