Updates the fox sprite. (#17102)

* 1999

* cl

* animation fix

* Update html/changelogs/KingOfThePing - Fox.yml

Co-authored-by: SleepyGemmy <99297919+SleepyGemmy@users.noreply.github.com>

---------

Co-authored-by: KingOfThePing <cb.back@gmx.de>
Co-authored-by: SleepyGemmy <99297919+SleepyGemmy@users.noreply.github.com>

code/modules/mob/holder.dm

@@ -607,7 +607,7 @@ var/list/holder_mob_icon_cache = list()
 
 /obj/item/holder/fox
 	name = "fox"
-	icon = 'icons/mob/npc/pets.dmi'
+	icon = 'icons/mob/npc/fox.dmi'
 	icon_state = "fox"
 	item_state = "fox"
 	w_class = ITEMSIZE_NORMAL

code/modules/mob/living/simple_animal/friendly/fox.dm

@@ -3,7 +3,7 @@
 	name = "fox"
 	real_name = "fox"
 	desc = "It's a fox. I wonder what it says?"
-	icon = 'icons/mob/npc/pets.dmi'
+	icon = 'icons/mob/npc/fox.dmi'
 	icon_state = "fox"
 	icon_living = "fox"
 	icon_dead = "fox_dead"