[MIRROR] Chem master containers use DMIcon (#29156)

* Chem master containers use DMIcon (#85422)

## About The Pull Request

![image](https://github.com/user-attachments/assets/5964f6f6-5485-48a9-a346-54490c5ce1b4)

Makes Chem and Condi master machines use DMIcon instead of stylesheets
to render icons.

## Why It's Good For The Game

Crisp icons, cleaner code.

## Changelog

🆑
image: Made chem master container icons not blurry
/🆑

* Chem master containers use DMIcon

---------

Co-authored-by: Andrew <mt.forspam@gmail.com>

code/modules/reagents/chemistry/machinery/chem_master.dm

@@ -255,11 +255,6 @@
 /obj/machinery/chem_master/attack_ai_secondary(mob/user, list/modifiers)
 	return attack_hand_secondary(user, modifiers)
 
-/obj/machinery/chem_master/ui_assets(mob/user)
-	return list(
-		get_asset_datum(/datum/asset/spritesheet/chemmaster)
-	)
-
 /obj/machinery/chem_master/ui_interact(mob/user, datum/tgui/ui)
 	ui = SStgui.try_update_ui(user, src, ui)
 	if(!ui)
@@ -281,9 +276,10 @@
 		//add containers to this category
 		for(var/obj/item/reagent_containers/container as anything in printable_containers[category])
 			category_list["containers"] += list(list(
-				"icon" = sanitize_css_class_name("[container]"),
 				"ref" = REF(container),
 				"name" = initial(container.name),
+				"icon" = initial(container.icon),
+				"icon_state" = initial(container.icon_state),
 				"volume" = initial(container.volume),
 			))