[MDB IGNORE] Removes tablet cartridges + reworks a ton more (#66505)

- All tablets who previously had apps in a cartridge now has them built-into their tablet instead. This means it costs space for it.
- Rebalances the sizes of several apps to help them fit on Command tablets (Cargo ordering costed 20!!)
- Removes tablet cartridges, they've been reworked into a regular old portable disk (the same you use for toxins/borgs)
- Removes Signaller (the module required to run the signaller app) from tablets (likely will remove more in the future)
- Refactors the health/chem scanning app to not be as bad
- Dehardcodes detomatix resistance
- Ability to send PDA's to all is now tied to your access rather than a cartridge
- Moves 'eject disk' button to the very top of the UI

code/modules/modular_computers/computers/_modular_computer_shared.dm

@@ -1,30 +1,32 @@
 
 /obj/proc/is_modular_computer()
-	return
+	return FALSE
+
+//item
+/obj/item/modular_computer/is_modular_computer()
+	return TRUE
+
+//machine
+/obj/machinery/modular_computer/is_modular_computer()
+	return TRUE
 
 /obj/proc/get_modular_computer_part(part_type)
 	return null
 
-/obj/item/modular_computer/is_modular_computer()
-	return TRUE
-
+//item
 /obj/item/modular_computer/get_modular_computer_part(part_type)
 	if(!part_type)
 		stack_trace("get_modular_computer_part() called without a valid part_type")
 		return null
 	return all_components[part_type]
 
-
-/obj/machinery/modular_computer/is_modular_computer()
-	return TRUE
-
+//machine
 /obj/machinery/modular_computer/get_modular_computer_part(part_type)
 	if(!part_type)
 		stack_trace("get_modular_computer_part() called without a valid part_type")
 		return null
 	return cpu?.all_components[part_type]
 
-
 /obj/proc/get_modular_computer_parts_examine(mob/user)
 	. = list()
 	if(!is_modular_computer())