Simpler lighting process, bug fixes, & modular computer tweaks (#1809)

Fixes #1806
Fixes #1730
Fixes #1747
Partially addresses #1763
Addresses #1283
Fixes #1799
Fixes #1816
Fixes #1813

code/modules/modular_computers/file_system/programs/generic/news_browser.dm

@@ -14,6 +14,7 @@
 	var/downloading = 0
 	var/message = ""
 	var/show_archived = 0
+	color = LIGHT_COLOR_GREEN
 
 /datum/computer_file/program/newsbrowser/process_tick()
 	if(!downloading)

code/modules/modular_computers/file_system/programs/generic/ntnrc_client.dm

@@ -15,6 +15,7 @@
 	var/datum/ntnet_conversation/channel = null
 	var/operator_mode = 0		// Channel operator mode
 	var/netadmin_mode = 0		// Administrator mode (invisible to other users + bypasses passwords)
+	color = LIGHT_COLOR_GREEN
 
 /datum/computer_file/program/chatclient/New()
 	username = "DefaultUser[rand(100, 999)]"

code/modules/modular_computers/file_system/programs/generic/nttransfer.dm

@@ -11,6 +11,7 @@ var/global/nttransfer_uid = 0
 	network_destination = "other device via P2P tunnel"
 	available_on_ntnet = 1
 	nanomodule_path = /datum/nano_module/program/computer_nttransfer/
+	color = LIGHT_COLOR_GREEN
 
 	var/error = ""										// Error screen
 	var/server_password = ""							// Optional password to download the file.