Tweaks some nuclear agent items (#22119)

* First changes

* Dont forget to do cooldown shit

* I HATE PEOPLE AAAAA

* Defib almost done

* Okay we ball

* Defib done

* I hate bullets

* Sniper done

* More stamina damage

* GDN review + Oops I forgor this

* Update code/datums/components/defibrillator.dm

Co-authored-by: Henri215 <77684085+Henri215@users.noreply.github.com>

* Disintegrate go brrrr

* Lewc review

* Ghhhhh

* Final oopsie fixed

* Almost made an oopsie daisy myself

---------

Co-authored-by: Henri215 <77684085+Henri215@users.noreply.github.com>

code/game/objects/structures/girders.dm

@@ -77,7 +77,7 @@
 		if(!isfloorturf(loc))
 			to_chat(user, "<span class='warning'>A floor must be present to build a false wall!</span>")
 			return
-		if (locate(/obj/structure/falsewall) in loc.contents)
+		if(locate(/obj/structure/falsewall) in loc.contents)
 			to_chat(user, "<span class='warning'>There is already a false wall present!</span>")
 			return
 		if(islava(loc))