Desk Mount Headphone Holder FOR THIN DESKS (< 25 mm) - non-flipped cable management

This is a remix of @Beaver's original and @Gugowski's remix:

- This is mostly @Beaver's original design, but made more narrow like @Gugowski's <25mm idea (great idea btw!) - I liked @Beaver's cable management orientation better so left that as is - I liked @Gugowski's screw design better so updated the knob end with that remix (but left the dimensions the same as the original I printed both the screw and the mount/clamp at 0.28 layer height and it works plenty smooth.