Client side implementation of the jukebox overhaul

• Uses a mixin into the sound system to determine the sound played at the position of the jukebox, then tries to get the record item of the sound. If it fails it will fall back to the server side implementation.

Fix puddles connecting weirdly

• The cause of the bug cannot be easily fixed and would cause issues with certain renderers, so I just made puddles unable to be placed when the corners or sides of the block above or below already have a fluid.

Fix #9 (Jukebox top being still visible even when a block is above the jukebox)