Thicker bed corner cover

This is a slight remix of johnniewhiskey's Ender 3 Cable Chain bed corner v2. I printed two the original, and both of them snapped off on the sides. So rather than repeat the same experience again (definition of insanity), I decided to remix this and make the parts slightly thicker, and add some reinforcement to bed corner cover.

I uploaded the combined parts so you only need the 1 download.