Refactors filters to utilize binary insertion instead of timSort (#93053)

## About The Pull Request

update_filters() is more expensive than it should be due to running
timSort every time a filter is added or removed, plus we wipe
re-initialize the entire atom filter list every time we call it. I
swapped it to use binary insertion into the main list, and we can cut
down on the amount of filter churn by storing filters in a separate list
which we can use Insert on, which allows us to stop constantly deleting
and recreating filters completely.

## Why It's Good For The Game

Server CPU consumption go down

## Changelog
🆑
refactor: Refactored filters to utilize binary insertion instead of
timSort. The server should run somewhat faster now, hopefully.
/🆑

code/modules/admin/view_variables/filterrific.dm

@@ -74,8 +74,7 @@
 		if("modify_icon_value")
 			var/icon/new_icon = input("Pick icon:", "Icon") as null|icon
 			if(new_icon)
-				target.filter_data[params["name"]]["icon"] = new_icon
-				target.update_filters()
+				target.modify_filter(params["name"], list("icon" = new_icon))
 				. = TRUE
 		if("mass_apply")
 			if(!check_rights_for(usr.client, R_FUN))