Changes the revolver obtained from gatfruit to an overgrown revolver (#21320)

* gatfruit more like gattofruit

* increases max ammo to 8

* bio is not a valid research

* small issue

* adds a missing space

* gatfruit takes time to open now

* Sirryan's request

* adds the sprite

* lewcc review + sprites

* ghhhhhh

* sprites are working

code/modules/projectiles/ammunition/ammo_casings.dm

@@ -53,6 +53,10 @@
 /obj/item/ammo_casing/c10mm/hp
 	projectile_type = /obj/item/projectile/bullet/midbullet3/hp
 
+/obj/item/ammo_casing/overgrown
+	projectile_type = /obj/item/projectile/bullet/midbullet3/overgrown
+	icon_state = "peashooter_bullet"
+
 /obj/item/ammo_casing/c9mm
 	desc = "A 9mm bullet casing."
 	caliber = "9mm"

code/modules/projectiles/ammunition/magazines.dm

@@ -80,6 +80,12 @@
 	caliber = "cap"
 	max_ammo = 7
 
+/obj/item/ammo_box/magazine/internal/overgrown
+	name = "overgrown pistol magazine"
+	desc = "Oh god, this shouldn't be here"
+	ammo_type = /obj/item/ammo_casing/overgrown
+	max_ammo = 8
+
 // Shotgun internal mags
 /obj/item/ammo_box/magazine/internal/shot
 	name = "shotgun internal magazine"