Add better-fitting hoods for monitor heads. (#30200)

* Add better-fitting hoods for monitor heads.

* Fix some icons not animating properly, thanks IconDiffBot2!

* Here you go

* Incorporate linter feedback.

* Re-order the checks slightly to make the hoods render.

* Defluff

---------

Co-authored-by: PollardTheDragon <144391971+PollardTheDragon@users.noreply.github.com>

code/modules/customitems/item_defines.dm

@@ -931,6 +931,7 @@
 /// Epic_Charger: Linda Clark
 /obj/item/clothing/head/hooded/hood/fluff/linda
 	icon_state = "greenhood"
+	icon_monitor = null
 
 /// Hylocereus: Sam Aria
 /obj/item/clothing/suit/hooded/hoodie/fluff/hylo
@@ -956,6 +957,7 @@
 /obj/item/clothing/head/hooded/hood/fluff/skeleton
 	icon = 'icons/obj/custom_items.dmi'
 	icon_state = "skeleton_hood"
+	icon_monitor = null
 
 /// RazekPraxis: SHODAN
 /obj/item/clothing/suit/armor/shodanscoat
@@ -1025,6 +1027,7 @@
 	desc = "A hood with some horns <i>glued</i> to them, or something like that. Custom fit for a Unathi's head shape."
 	icon = 'icons/obj/custom_items.dmi'
 	icon_state = "xydonus_bomberhood"
+	icon_monitor = null
 
 /// Pineapple Salad: Dan Jello
 /obj/item/clothing/suit/fluff/pineapple