Fixes improper static list declarations + adds grep for it (#87207)

## About The Pull Request

I randomly came across a `var/list/static` in the code, which does not
actually do what was intended, and thought it was silly. A ctrl+f
revealed that this was a fairly common mistake, so I went and fixed all
the instances of it I could find.

~~Including one in lighting code, which it looked like they were trying
to create a global list to cache generated lighting sheet values for
speed, but it was just a normal list that got created each time
pointlessly. Now those values are actually being cached (using a global
var, because a `static` list was not the right thing to use there in the
first place).~~

Nevermind, it seems that this was in fact being cached even if it
shouldn't have been, because byond. Just rearranged it there seeing as
it works either way.


## Why It's Good For The Game

Code that does what it's supposed to

## Changelog

🆑
fix: fixes a bunch of improper static list declarations
/🆑

code/modules/projectiles/projectile/bullets/special.dm

@@ -196,7 +196,7 @@
 	if(possible_victims.len)
 		return pick(possible_victims)
 
-	var/list/static/prioritized_targets = list(/obj/structure/reagent_dispensers, /obj/item/grenade, /obj/structure/window)
+	var/static/list/prioritized_targets = list(/obj/structure/reagent_dispensers, /obj/item/grenade, /obj/structure/window)
 	for(var/iter_type in prioritized_targets)
 		for(var/already_coined_tries in 1 to 3)
 			var/atom/iter_type_check = locate(iter_type) in valid_targets