Modular PDAs: The End of an Era (#10319)

PDAs are dead, long live PDAs. All trace of old PDAs has been scoured from the codebase, and in its place are modular computer PDAs that are feature-equivalent. Essentially every PDA function except the Syndicate detonation feature and Notepad has been ported over, and battery life for handheld computers has been boosted alongside the addition of charging cables to make things easier.

code/modules/modular_computers/computers/modular_computer/variables.dm

@@ -1,4 +1,5 @@
 // This is the base type that handles everything. Subtypes can be easily created by tweaking variables in this file to your liking.
+
 /obj/item/modular_computer
 	name = "Modular Computer"
 	desc = "A modular computer. You shouldn't see this."
@@ -21,6 +22,12 @@
 	var/_app_preset_type									// Used for specifying the software preset of the console
 	var/ambience_last_played								// Last time sound was played
 	var/pAI_lock = FALSE									// Toggles whether pAI can interact with the modular computer while installed in it
+	var/obj/item/card/id/registered_id = null 				// ID used for chat client registering
+	var/scan_mode = null									// Mode used for health/reagent scanners
+	var/silent = FALSE
+	var/doorcode = "smindicate"
+	var/hidden = FALSE
+	var/initial_name
 
 	// Modular computers can run on various devices. Each DEVICE (Laptop, Console, Tablet,..)
 	// must have it's own DMI file. Icon states must be called exactly the same in all files, but may look differently