[MIRROR] Fixes showcase microwave's missing sprite [MDB IGNORE] (#16789)

* Fixes showcase microwave's missing sprite (#70392)

#70203 changed the microwave's dmi path but did not replace the showcase variant's icon with the new dmi.

* Fixes showcase microwave's missing sprite

* Microwave Aesthetics

Co-authored-by: Sealed101 <75863639+Sealed101@users.noreply.github.com>
Co-authored-by: Tastyfish <crazychris32@gmail.com>

code/game/objects/structures/showcase.dm

@@ -77,8 +77,8 @@
 /obj/structure/showcase/machinery/microwave
 	name = "\improper Nanotrasen-brand microwave"
 	desc = "The famous Nanotrasen-brand microwave, the multi-purpose cooking appliance every station needs! This one appears to be drawn onto a cardboard box."
-	icon = 'icons/obj/kitchen.dmi'
-	icon_state = "mw"
+	icon = 'icons/obj/machines/microwave.dmi'
+	icon_state = "map_icon"
 
 /obj/structure/showcase/machinery/cloning_pod
 	name = "cloning pod exhibit"

modular_skyrat/modules/aesthetics/kitchen/kitchen.dm

@@ -22,3 +22,6 @@
 //Different icon file, but it will still go in the kitchen folder!!!
 /obj/machinery/microwave
 	icon = 'modular_skyrat/modules/aesthetics/kitchen/microwave.dmi'
+
+/obj/structure/showcase/machinery/microwave
+	icon = 'modular_skyrat/modules/aesthetics/kitchen/microwave.dmi'