Adds on-mob sprites for the pocketwatch + differing states per slot worn (#20375)

I feel so sigma!
![image](https://i.imgur.com/F3jQTaK.gif)
![image](https://i.imgur.com/WUKJSEO.gif)

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Co-authored-by: Gabby <59633984+feartheblackout@users.noreply.github.com>

code/game/objects/items/tajara.dm

@@ -127,7 +127,7 @@
 			carrying primarily the essentials for survival and only a token amount of ammunition. Many detachments also make use of snow skiis in order to travel quickly in mountainous regions. \
 			They are well-known for their iconic thick light-colored cloaks which they wear while traversing the vast countrysides for warmth, as well as camouflage."
 
-/obj/item/pocketwatch/adhomai
+/obj/item/clothing/wrists/watch/pocketwatch/adhomai
 	name = "adhomian watch"
 	desc = "A watch made in the traditional adhomian style. It can be stored in a pocket or worn around the neck."
 	desc_extended = "Baltoris a fortress founded during the Gunpowder Age; it was the landing site of the royal armies during the Suns'wars. Baltor plays a strategic role in controlling the \
@@ -140,10 +140,10 @@
 	slot_flags = SLOT_MASK
 	var/static/months = list("Menshe-aysaif", "Sil'nryy-aysaif", "Menshe-rhazzimy", "Sil'nryy-rhazzimy")
 
-/obj/item/pocketwatch/adhomai/get_mask_examine_text(mob/user)
+/obj/item/clothing/wrists/watch/pocketwatch/adhomai/get_mask_examine_text(mob/user)
 	return "around [user.get_pronoun("his")] neck"
 
-/obj/item/pocketwatch/adhomai/checktime(mob/user)
+/obj/item/clothing/wrists/watch/pocketwatch/adhomai/checktime(mob/user)
 	set category = "Object"
 	set name = "Check Time"
 	set src in usr