TronXY X5S Z Wobble Fix - Boxy Remix for easier printing

Based on TronXY X5S Z Wobble Fix by Dan_Yole, but with that model I always had trouble printing the overhangs around the screw holes, because the outer walls are very thin at the screw holes, so the outer walls were quite unstable until the screw holes were bridged.
To counter that, I just added a couple of boxes around the edges so there are no overhangs there and it probably is a bit more stiff overall, the inner dimensions and length are the same, so its still compatible with the original mo