fixes plasma caster onmob (#7175)

# About the pull request
how did this even happen
also changed some sprite layering
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# Explain why it's good for the game

# Testing Photographs and Procedure

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# Changelog

:cl:
fix: plasma caster onmob fixed
code: layering changed a bit
/:cl:

code/__DEFINES/human.dm

@@ -142,10 +142,10 @@
 #define SUIT_SQUAD_LAYER 28
 #define GLASSES_LAYER 27
 #define BELT_LAYER 26
-#define SUIT_STORE_LAYER 25
-#define BACK_LAYER 24
-#define HAIR_LAYER 23
-#define HAIR_GRADIENT_LAYER 22
+#define BACK_LAYER 25
+#define HAIR_LAYER 24
+#define HAIR_GRADIENT_LAYER 23
+#define SUIT_STORE_LAYER 22
 #define FACIAL_LAYER 21
 #define EARS_LAYER 20
 #define FACEMASK_LAYER 19

code/modules/cm_preds/yaut_weapons.dm

@@ -1150,7 +1150,7 @@
 
 /obj/item/weapon/gun/energy/yautja/plasma_caster/Initialize(mapload, spawn_empty, caster_material = "ebony")
 	icon_state = "[base_icon_state]_[caster_material]"
-	item_state = "[base_icon_state]_[caster_material]"
+	item_state = "[base_item_state]_[caster_material]"
 	item_state_slots[WEAR_BACK] = "[base_item_state]_off_[caster_material]"
 	item_state_slots[WEAR_J_STORE] = "[base_item_state]_off_[caster_material]"
 	. = ..()