Fixing missing in-hand laser cannon sprite (#1001)

The laser canon, the rifle one, is missing in hand sprite, this should fix this issue.
Also, some shotgun slugs using the wrong wasted sprite.

code/modules/projectiles/ammunition/bullets.dm

@@ -104,6 +104,7 @@
 	name = "shotgun shell"
 	desc = "A practice shell."
 	icon_state = "pshell"
+	spent_icon = "pshell"
 	projectile_type = /obj/item/projectile/bullet/shotgun/practice
 	matter = list("metal" = 90)
 
@@ -134,6 +135,7 @@
 	name = "flash shell"
 	desc = "A chemical shell used to signal distress or provide illumination."
 	icon_state = "fshell"
+	spent_icon = "fshell"
 	projectile_type = /obj/item/projectile/energy/flash/flare
 	matter = list(DEFAULT_WALL_MATERIAL = 90, "glass" = 90)
 
@@ -192,4 +194,4 @@
 	desc = "A .666 bullet casing."
 	caliber = "357"
 	projectile_type = /obj/item/projectile/bullet/cyanideround
-*/
+*/