Elgato Streamdeck Desk Mount

This is a remix of groan's desk mount model with a few minor tweaks:

- Enlarged the USB hole in the back to allow easy cord snaking without sanding
- Added a cord path in the model so the cord can be discretely routed under the desk
- Broke the model into two pieces for easier printing with less supports (alignment cube provided for gluing)
- Reduced the bezel size in the front to make it more compact, and less likely to end up against my knee accidentally