Subsystem change for the SM and TEG and slight QoL

code/modules/power/supermatter/supermatter.dm

@@ -129,6 +129,7 @@
 
 /obj/machinery/power/supermatter_shard/New()
 	. = ..()
+	SSair.atmos_machinery += src
 	countdown = new(src)
 	countdown.start()
 	GLOB.poi_list |= src
@@ -139,6 +140,7 @@
 
 /obj/machinery/power/supermatter_shard/Destroy()
 	investigate_log("has been destroyed.", "supermatter")
+	SSair.atmos_machinery -= src
 	QDEL_NULL(radio)
 	GLOB.poi_list -= src
 	QDEL_NULL(countdown)
@@ -181,7 +183,7 @@
 			E.energy = power
 		qdel(src)
 
-/obj/machinery/power/supermatter_shard/process()
+/obj/machinery/power/supermatter_shard/process_atmos()
 	var/turf/T = loc
 
 	if(isnull(T))		// We have a null turf...something is wrong, stop processing this entity.
@@ -296,6 +298,7 @@
 
 	if(produces_gas)
 		env.merge(removed)
+		air_update_turf()
 
 	for(var/mob/living/carbon/human/l in view(src, HALLUCINATION_RANGE(power))) // If they can see it without mesons on.  Bad on them.
 		if(!istype(l.glasses, /obj/item/clothing/glasses/meson))