-Fixed incorrect texture for the sand cloud particles when moving.
-Reversed previous idle state changes.

Updates to Sandy:

Movement State:
-Changed sand clouds to be a camera depth bias of 0 instead of 5, this will help with the dust clouds occluding the player model in some cases.

Idle State:
-Changed idle sand clumps to lock rotation, so the sand falling isn't influenced by camera position.
-Changed camera depth bias to idle clouds to 5 instead of 10, so that it doesn't occlude player model at unintended angles.