Even deeper notch as the USB-Cable has no chance to be plugged in otherwise. Referenced white-screen issues in Maiskolben_Mechaincal/README.md and added a software fix, bump to V2.7
And removed a small edge and added a notch for USB-cables
"Should be working" was the right text - should but wasn't
Finally closes #2, but is case currently untested (should be working fine...)
