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/computers/subtypes/dev_handheld.dm

@@ -2,7 +2,6 @@
 	name = "tablet computer"
 	lexical_name = "tablet"
 	desc = "A portable device for your needs on the go."
-	desc_info = "To deploy the charging cable on this device, either drag and drop it over a nearby APC, or click on the APC with the computer in hand."
 	icon = 'icons/obj/modular_tablet.dmi'
 	icon_state = "tablet"
 	icon_state_unpowered = "tablet"
@@ -15,6 +14,10 @@
 	w_class = WEIGHT_CLASS_SMALL
 	looping_sound = FALSE
 
+/obj/item/modular_computer/handheld/mechanics_hints(mob/user, distance, is_adjacent)
+	. += ..()
+	. += "To deploy the charging cable on this device, either drag and drop it over a nearby APC, or click on the APC with the computer in hand."
+
 /obj/item/modular_computer/handheld/Initialize()
 	. = ..()
 	set_icon()

code/modules/modular_computers/computers/subtypes/dev_laptop.dm

@@ -3,7 +3,6 @@
 	name = "laptop computer"
 	lexical_name = "laptop"
 	desc = "A portable computer."
-	desc_info = "You can alt-click the laptop while it's set down on surface to open it up and work with it. Left clicking while it is open will allow you to operate it."
 	hardware_flag = PROGRAM_LAPTOP
 	can_reset = TRUE
 	icon_state_unpowered = "laptop-open"
@@ -21,6 +20,11 @@
 	broken_damage = 25
 	var/icon_state_closed = "laptop-closed"
 
+/obj/item/modular_computer/laptop/mechanics_hints(mob/user, distance, is_adjacent)
+	. += ..()
+	. += "ALT-click the laptop while it's set down on a surface to open or close it."
+	. += "Left-click on it while it is open to operate it."
+
 /obj/item/modular_computer/laptop/AltClick()
 	if(use_check(usr))
 		return