m44 import from downstream (#6984)

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# About the pull request
imports the m44 sprites from downstream (PvE)

cmss13-devs/cmss13-pve#196
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# Explain why it's good for the game
They look more organic and "real" than the current thin revolver sprites
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# Testing Photographs and Procedure
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<details>
<summary>Screenshots & Videos</summary>


![bBTneUK3Bq](https://github.com/user-attachments/assets/a5825f72-6d8b-48ef-80a2-7b67a341112b)

</details>


# Changelog

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:cl: dongwaiver
imageadd: new m44 revolver sprites
imagedel: old m44 revolver sprites
/:cl:

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code/modules/projectiles/guns/revolvers.dm

@@ -314,7 +314,7 @@
 	var/folded = FALSE // Used for the stock attachment, to check if we can shoot or not
 
 /obj/item/weapon/gun/revolver/m44/set_gun_attachment_offsets()
-	attachable_offset = list("muzzle_x" = 29, "muzzle_y" = 21,"rail_x" = 12, "rail_y" = 23, "under_x" = 21, "under_y" = 18, "stock_x" = 16, "stock_y" = 20)
+	attachable_offset = list("muzzle_x" = 29, "muzzle_y" = 21,"rail_x" = 12, "rail_y" = 23, "under_x" = 21, "under_y" = 16, "stock_x" = 16, "stock_y" = 20)
 
 /obj/item/weapon/gun/revolver/m44/set_gun_config_values()
 	..()