[BUG FIX] Post Jam Tweaks

Uploading a couple of small changes based on feedback from the Jam judging period.

Specifically:

Updated audio channels for SFX across the board - there were some sounds that were playing through the wrong channels and therefore not updating appropriately with sound settings

Added aiming up & down to DOOMEI - this was a small QoL update since I had seen someone mention it, and thinking about it, enemies can possibly shoot at you at an angle, and that made them basically unable to be dealt with unless you kited them to a specific area. Obviously that's not fun, so I wanted to fix it.

As per usual, let us know if there are any bugs encountered (likely some stuff will rear its head due to the aiming changes, cause I'll be honest I didn't test it at all, just made sure it worked)