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/system/client_manager.dm

@@ -7,6 +7,7 @@
 	filedesc = "NTOS Client Manager"
 	extended_desc = "This program allows configuration of computer's software"
 	program_icon_state = "generic"
+	color = LIGHT_COLOR_GREEN
 	unsendable = 1
 	undeletable = 1
 	size = 4

code/modules/modular_computers/file_system/programs/system/configurator.dm

@@ -7,6 +7,7 @@
 	filedesc = "Computer Configuration Tool"
 	extended_desc = "This program allows configuration of computer's hardware"
 	program_icon_state = "generic"
+	color = LIGHT_COLOR_GREEN
 	unsendable = 1
 	undeletable = 1
 	size = 4
@@ -59,4 +60,4 @@
 		ui = new(user, src, ui_key, "laptop_configuration.tmpl", "NTOS Configuration Utility", 575, 700, state = state)
 		ui.auto_update_layout = 1
 		ui.set_initial_data(data)
-		ui.open()
+		ui.open()

code/modules/modular_computers/file_system/programs/system/file_browser.dm

@@ -4,6 +4,7 @@
 	filedesc = "NTOS File Manager"
 	extended_desc = "This program allows management of files."
 	program_icon_state = "generic"
+	color = LIGHT_COLOR_GREEN
 	size = 8
 	requires_ntnet = 0
 	available_on_ntnet = 0

code/modules/modular_computers/file_system/programs/system/ntdownloader.dm

@@ -3,6 +3,7 @@
 	filedesc = "NTNet Software Download Tool"
 	program_icon_state = "generic"
 	extended_desc = "This program allows downloads of software from official NT repositories"
+	color = LIGHT_COLOR_GREEN
 	unsendable = 1
 	undeletable = 1
 	size = 4