Modular Tablets: Converting PDAs to the NtOS System (#65755)

Converts PDA functions and applications over to modular tablets and devices, namely the messaging function. HREF data code is quite honestly clunky and difficult to work with, as I've definitely experienced whilst working on this. By moving from this system over the easier to read (and frankly, easier to add to) TGUI system, you get cleaner looking and more user friendly UIs and a greater degree of standardization amongst other UIs.

Co-authored-by: Seth Scherer <supernovaa41@gmx.com>
Co-authored-by: GoldenAlpharex <58045821+GoldenAlpharex@users.noreply.github.com>
Co-authored-by: Aleksej Komarov <stylemistake@gmail.com>

code/modules/mob_spawn/corpses/mining_corpses.dm

@@ -124,7 +124,6 @@
 	uniform = /obj/item/clothing/under/rank/civilian/clown
 	back = /obj/item/storage/backpack/clown
 	backpack_contents = list()
-	belt = /obj/item/pda/clown
 	ears = /obj/item/radio/headset/headset_srv
 	shoes = /obj/item/clothing/shoes/clown_shoes
 	mask = /obj/item/clothing/mask/gas/clown_hat

code/modules/mob_spawn/corpses/nonhuman_corpses.dm

@@ -15,7 +15,6 @@
 	. = ..()
 	dead_ai.name = src.name
 	dead_ai.real_name = src.name
-	dead_ai.aiPDA.toff = TRUE //turns the AI's PDA messenger off, stopping it showing up on player PDAs
 
 ///dead slimes, with a var for whatever color you want.
 /obj/effect/mob_spawn/corpse/slime

code/modules/mob_spawn/ghost_roles/unused_roles.dm

@@ -197,7 +197,7 @@
 /obj/effect/mob_spawn/ghost_role/human/doctor/alive/equip(mob/living/carbon/human/doctor)
 	. = ..()
 	// Remove radio and PDA so they wouldn't annoy station crew.
-	var/list/del_types = list(/obj/item/pda, /obj/item/radio/headset)
+	var/list/del_types = list(/obj/item/modular_computer/tablet, /obj/item/radio/headset)
 	for(var/del_type in del_types)
 		var/obj/item/unwanted_item = locate(del_type) in doctor
 		qdel(unwanted_item)

code/modules/mob_spawn/mob_spawn.dm

@@ -255,9 +255,9 @@
 	. = ..()
 	if(conceal_presence)
 		// We don't want corpse PDAs to show up in the messenger list.
-		var/obj/item/pda/messenger = locate(/obj/item/pda) in spawned_human
+		var/obj/item/modular_computer/tablet/pda/messenger = locate(/obj/item/modular_computer/tablet/pda/) in spawned_human
 		if(messenger)
-			messenger.toff = TRUE
+			messenger.invisible = TRUE
 		// Or on crew monitors
 		var/obj/item/clothing/under/sensor_clothes = spawned_human.w_uniform
 		if(istype(sensor_clothes))