Changes all .len to length() where applicable (#25174)

* Globals work

* Double access works

* All other things

* Revert "All other things"

This reverts commit 6574442eb6.

* More changes that compile and work

* IT WORKS AAAAAA

* Changes even more .len to length()

* Apply suggestions from code review

* Update code/datums/mind.dm

* Update code/__HELPERS/sorts/InsertSort.dm

Co-authored-by: Deniz <66401072+Oyu07@users.noreply.github.com>

* Update code/__HELPERS/sanitize_values.dm

Co-authored-by: Deniz <66401072+Oyu07@users.noreply.github.com>

---------

Co-authored-by: FunnyMan3595 (Charlie Nolan) <funnyman@google.com>
Co-authored-by: Deniz <66401072+Oyu07@users.noreply.github.com>

code/controllers/subsystem/non_firing/SSmapping.dm

@@ -203,7 +203,7 @@ SUBSYSTEM_DEF(mapping)
 	log_startup_progress("Loaded Lavaland in [stop_watch(watch)]s")
 
 /datum/controller/subsystem/mapping/proc/seedRuins(list/z_levels = null, budget = 0, whitelist = /area/space, list/potentialRuins)
-	if(!z_levels || !z_levels.len)
+	if(!z_levels || !length(z_levels))
 		WARNING("No Z levels provided - Not generating ruins")
 		return
 
@@ -230,10 +230,10 @@ SUBSYSTEM_DEF(mapping)
 			continue
 		ruins_availible[R] = R.placement_weight
 
-	while(budget > 0 && (ruins_availible.len || forced_ruins.len))
+	while(budget > 0 && (length(ruins_availible) || length(forced_ruins)))
 		var/datum/map_template/ruin/current_pick
 		var/forced = FALSE
-		if(forced_ruins.len) //We have something we need to load right now, so just pick it
+		if(length(forced_ruins)) //We have something we need to load right now, so just pick it
 			for(var/ruin in forced_ruins)
 				current_pick = ruin
 				if(forced_ruins[ruin] > 0) //Load into designated z