Update MC (#18112)

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code/modules/modular_computers/NTNet/NTNRC/conversation.dm

@@ -13,8 +13,8 @@ var/global/ntnrc_uid = 0
 	ntnrc_uid++
 	if(name)
 		title = name
-	if(ntnet_global)
-		ntnet_global.chat_channels.Add(src)
+	if(GLOB.ntnet_global)
+		GLOB.ntnet_global.chat_channels.Add(src)
 	if(no_operator)
 		operator = "NanoTrasen Information Technology Division" // assign a fake operator
 	..()
@@ -35,7 +35,7 @@ var/global/ntnrc_uid = 0
 
 	var/ntnet_log = message.format_ntnet_log(src)
 	if(ntnet_log)
-		ntnet_global.add_log(ntnet_log, message.client.computer.network_card, TRUE)
+		GLOB.ntnet_global.add_log(ntnet_log, message.client.computer.network_card, TRUE)
 
 	var/chat_log = message.format_chat_log(src)
 	if(chat_log)

code/modules/modular_computers/NTNet/NTNRC/user.dm

@@ -6,16 +6,16 @@
 
 /datum/ntnet_user/New()
 	. = ..()
-	ntnet_global.chat_users.Add(src)
+	GLOB.ntnet_global.chat_users.Add(src)
 
 /datum/ntnet_user/Destroy(force)
 	. = ..()
 
 	//This notifies every client that might have this as a client to deactivate and clear the reference
-	for(var/datum/computer_file/program/chat_client/client as anything in ntnet_global.chat_clients)
+	for(var/datum/computer_file/program/chat_client/client as anything in GLOB.ntnet_global.chat_clients)
 		client.handle_ntnet_user_deletion(src)
 
-	ntnet_global.chat_users.Remove(src)
+	GLOB.ntnet_global.chat_users.Remove(src)
 	channels = null
 	dm_channels = null
 	clients = null