update_appearance (#55468)

Creates update_name and update_desc
Creates the wrapper proc update_appearance to batch update_name, update_desc, and update_icon together
Less non-icon handling code in update_icon and friends
Signal hooks for things that want to change names and descriptions
99%+ of the changes in this are just from switching everything over to update_appearance from update_icon

code/game/objects/items/hot_potato.dm

@@ -137,7 +137,7 @@
 /obj/item/hot_potato/proc/activate(delay, mob/user)
 	if(active)
 		return
-	update_icon()
+	update_appearance()
 	if(sticky)
 		ADD_TRAIT(src, TRAIT_NODROP, HOT_POTATO_TRAIT)
 	name = "primed [name]"
@@ -151,7 +151,7 @@
 	active = TRUE
 
 /obj/item/hot_potato/proc/deactivate()
-	update_icon()
+	update_appearance()
 	name = initial(name)
 	REMOVE_TRAIT(src, TRAIT_NODROP, HOT_POTATO_TRAIT)
 	deltimer(detonation_timerid)
@@ -161,7 +161,8 @@
 	active = FALSE
 
 /obj/item/hot_potato/update_icon_state()
-	icon_state = active? icon_on : icon_off
+	icon_state = active ? icon_on : icon_off
+	return ..()
 
 /obj/item/hot_potato/syndicate
 	detonate_light_range = 4