Inconsistent naming of WallRack

[AlexCPU]

Describe the bug
WallRack generator does not support wall edges, but is named as if it does. Everything in the "WallMounted" category that starts with "Wall" has an option for wall system appropriate edges, excluding WallRack, which is different.

I understand why it's called WallRack, names are hard and I can't think of anything better!

One possible solution would be to have the WallMounted category renamed to WallSystem (or similar), and only contain items based off _WallMountedBox