Munitions visibility tweaking and cleanup (#41137)

Munitions visibility tweaking and cleanup (#41137)

* I didn't make an init commit, 1: because i forgot, 2: because the PR is so tiny, the whole thing is done already

* beans and shards no glow, clean up

* commented out PointLight, does too little for how straining it would be

* Improvised shells now use shards as their bullet sprite, they still don't embed though