cleanup _HELPERS/_lists.dm and all the necessary files (#61827)

Bring _HELPERS/_lists.dm to latest standards by:
-Adding proper documentation and fixing existing one
-Giving vars proper names
-Procs now use snake case as per standard (many files that use those procs will be affected)

code/modules/client/preferences.dm

@@ -104,7 +104,7 @@ GLOBAL_LIST_EMPTY(preferences_datums)
 				max_save_slots = 8
 
 	// give them default keybinds and update their movement keys
-	key_bindings = deepCopyList(GLOB.default_hotkeys)
+	key_bindings = deep_copy_list(GLOB.default_hotkeys)
 	key_bindings_by_key = get_key_bindings_by_key(key_bindings)
 	randomise = get_default_randomization()
 

code/modules/client/preferences/middleware/keybindings.dm

@@ -24,7 +24,7 @@
 	)
 
 /datum/preference_middleware/keybindings/proc/reset_all_keybinds(list/params, mob/user)
-	preferences.key_bindings = deepCopyList(GLOB.default_hotkeys)
+	preferences.key_bindings = deep_copy_list(GLOB.default_hotkeys)
 	preferences.key_bindings_by_key = preferences.get_key_bindings_by_key(preferences.key_bindings)
 	preferences.update_static_data(user)
 

code/modules/client/preferences/species.dm

@@ -42,9 +42,9 @@
 
 		if (!(TRAIT_NOHUNGER in species.inherent_traits))
 			diet = list(
-				"liked_food" = bitfield2list(species.liked_food, food_flags),
-				"disliked_food" = bitfield2list(species.disliked_food, food_flags),
-				"toxic_food" = bitfield2list(species.toxic_food, food_flags),
+				"liked_food" = bitfield_to_list(species.liked_food, food_flags),
+				"disliked_food" = bitfield_to_list(species.disliked_food, food_flags),
+				"toxic_food" = bitfield_to_list(species.toxic_food, food_flags),
 			)
 
 		data[species_id] = list(

code/modules/client/preferences_savefile.dm

@@ -188,7 +188,7 @@ SAVEFILE UPDATING/VERSIONING - 'Simplified', or rather, more coder-friendly ~Car
 		var/datum/outfit/path = text2path(typetext)
 		if(ispath(path)) //whatever typepath fails this check probably doesn't exist anymore
 			parsed_favs += path
-	favorite_outfits = uniqueList(parsed_favs)
+	favorite_outfits = unique_list(parsed_favs)
 
 	// Custom hotkeys
 	READ_FILE(S["key_bindings"], key_bindings)

code/modules/client/verbs/ooc.dm

@@ -248,7 +248,7 @@ GLOBAL_VAR_INIT(normal_ooc_colour, "#002eb8")
 		return
 
 	// Sort the list
-	players = sortList(players)
+	players = sort_list(players)
 
 	// Request the player to ignore
 	var/selection = input("Please, select a player!", "Ignore", null, null) as null|anything in players

code/modules/client/verbs/who.dm

@@ -56,7 +56,7 @@
 
 	var/num_lines = 0
 	msg += "<table style='width: 100%; table-layout: fixed'><tr>"
-	for(var/line in sortList(Lines))
+	for(var/line in sort_list(Lines))
 		msg += "<td>[line]</td>"
 
 		num_lines += 1