Kosmostrelki now know Baghrar (#19356)

As stated in da lore: 'The Kosmostrelki are usually trained in the
martial art of Baghrar, both to instill discipline and help with their
balance. '

To reflect this, ERT and Kosmostrelki ghostroles now have the martial
art of Baghrar.

---------

Co-authored-by: Ben10083 <Ben10083@users.noreply.github.com>

code/modules/ghostroles/spawner/human/pra.dm

@@ -50,6 +50,7 @@
 						/obj/item/ammo_magazine/mc9mm = 2
 						)
 	r_hand = /obj/item/storage/field_ration
+	l_hand = /obj/item/martial_manual/tajara
 
 /obj/outfit/admin/pra_cosmonaut/commissar
 	name = "Party Commissar"
@@ -68,4 +69,4 @@
 						/obj/item/storage/box/hadii_card = 1
 						)
 	l_hand = /obj/item/device/megaphone
-	r_hand = null
+	r_hand = /obj/item/martial_manual/tajara