Low HP Indicators

Added Fade Out to the audio (can be turned back off in config)

"Fade Out":

After just a few times of the audio playing, it will decrease in volume (50%), then decrease in volume again (25%), then stop playing entirely.
This is completely compatible with the config/volume you set.

I believe updates like this reset the config to default, double check before you get jump scared with unwanted changes.

Fixes:

Unused breath sound is now part of the player sound category. (oops)

Subtle timing diffences removed from any low HP indication after the first within each play session.