playsound vary boolean define conversion (#46254)

About The Pull Request

Converts every single usage of playsound's vary parameter to use the boolean define instead of 1 or 0. I'm tired of people copypasting the incorrect usage.
Also changes a couple of places where a list was picked from instead of using get_sfx internal calls

This was done via regex:
(playsound\(.+,.+,.+, ?)1( ?\)| ?,.+\)) to match 1
(playsound\(.+,.+,.+, ?)0( ?\)| ?,.+\)) to match 0
full sed commands:
/(playsound\(.+,.+,.+, ?)1( ?\)| ?,.+\))/\1TRUE\2/ 1 to TRUE
/(playsound\(.+,.+,.+, ?)0( ?\)| ?,.+\))/\1FALSE\2/ 0 to FALSE

I'm not very good with regex and these could probably be optimized, but they worked.
Why It's Good For The Game

Code usability

code/modules/holodeck/computer.dm

@@ -167,7 +167,7 @@
 	if(!LAZYLEN(emag_programs))
 		to_chat(user, "[src] does not seem to have a card swipe port. It must be an inferior model.")
 		return
-	playsound(src, "sparks", 75, 1)
+	playsound(src, "sparks", 75, TRUE)
 	obj_flags |= EMAGGED
 	to_chat(user, "<span class='warning'>You vastly increase projector power and override the safety and security protocols.</span>")
 	say("Warning. Automatic shutoff and derezzing protocols have been corrupted. Please call Nanotrasen maintenance and do not use the simulator.")