Object Examine Text Overhaul (#20923)

Extends and reworks how various extended information text (desc_info,
desc_build, desc_upgrades) are handled to make object interactions and
mechanics A.) much more clearly documented in-game and B.) much easier
to support from the back-end.

Almost certainly a candidate for test merge.

Assembly/Disassembly instructions are noticeably sporadic, largely due
to our current lack of a unified framework. That's a future thing I'd
like to attack so that it can be handled programmatically, but for now I
only targeted the biggest culprits as I came across them.

---------

Signed-off-by: Batrachophreno <Batrochophreno@gmail.com>

code/modules/modular_computers/items/paper_scanner.dm

@@ -1,13 +1,17 @@
 /obj/item/paper_scanner
 	name = "paper scanner"
 	desc = "A simple device that can be used to scan paper or paper bundles in order to digitize them."
-	desc_info = "Alt-click it while it's in one of your hands to eject the portable drive. Click paper or a paper bundle with it to digitize it and store it in the inserted drive."
 	icon = 'icons/obj/devices/paperscanner.dmi'
 	icon_state = "paperscanner"
 	item_state = "paperscanner"
 	contained_sprite = TRUE
 	var/obj/item/computer_hardware/hard_drive/portable/drive
 
+/obj/item/paper_scanner/mechanics_hints(mob/user, distance, is_adjacent)
+	. += ..()
+	. += "Click paper or a paper bundle with it to digitize it and store it in the inserted drive."
+	. += "ALT-click it while it's in one of your hands to eject the portable drive."
+
 /obj/item/paper_scanner/Initialize(mapload, ...)
 	. = ..()
 	drive = new /obj/item/computer_hardware/hard_drive/portable(src)