X-axis cover for CR-10(S) webcam mount resized

Printed the original and found the bottom holes were 2mm too far down for my machine. Pulled out 2mm in DesignSpark, thankfully there was juuuuust enough room to do it. I also applied some fillets to the boom receptacle for additional strength.

Did my test fit, everything lines up perfectly. Only problem is that the screw holes for the X axis switch are still a bit big (from the original design) so **don't** attempt to tighten at all...they will strip out.