Mouselook attachments & depth of field cursor focus

Two fixes here.

The first is for your own attachments not rendering correctly in 'Show Avatar in Mouselook':

Avatars used to sink in the ground, and to make that less apparent in mouselook, the viewer squishes skeletons upward (keeping head at the same location). This isn't needed anymore, and it makes attachments not line up with the avatar mesh while in first person view.

The other is a missing behavior with depth of field where the depth focus should shift to whatever the cursor hovers over, when you're using joystick flycam.

Both tested on windows only..