Ender 5 bed support - "Compressive" Super Struts

Description

This remix takes BoothyBooty's remix and adds some additional structure to prevent cracking on the screw-together plates (so you can print with less infill). I had both of the original struts crack. Second, I add a tab that pushes against the plate, so rather than the strut trying to "hold up" the bed, it uses a compressive force to prevent the bed from deflecting. I've found that this small redesign keeps the bed even more stable (and the stress on the part is significantly reduced).