Fixes the Grauwolf and Francisca projectiles not using their overmap projectile icon. (#15144)

Co-authored-by: Matt Atlas <liermattia@gmail.com>

code/modules/overmap/ship_weaponry/weaponry/francisca.dm

@@ -18,6 +18,7 @@
 	desc = "A box of FMJ bullets for use in a Francisca rotary gun."
 	icon = 'icons/obj/guns/ship/ship_ammo_rotary.dmi'
 	icon_state = "box_fmj"
+	overmap_icon_state = "cannon_salvo"
 	impact_type = SHIP_AMMO_IMPACT_FMJ
 	ammunition_flags = SHIP_AMMO_FLAG_INFLAMMABLE|SHIP_AMMO_FLAG_VERY_HEAVY|SHIP_AMMO_FLAG_INFLAMMABLE
 	caliber = SHIP_CALIBER_40MM

code/modules/overmap/ship_weaponry/weaponry/grauwolf.dm

@@ -17,6 +17,7 @@
 	desc = "A bundle of high-explosive flak shells."
 	icon = 'icons/obj/guns/ship/ship_ammo_flakbox.dmi'
 	icon_state = "bundle_he"
+	overmap_icon_state = "flak"
 	caliber = SHIP_CALIBER_90MM
 	ammunition_behaviour = SHIP_AMMO_BEHAVIOUR_DUMBFIRE
 	projectile_type_override = /obj/item/projectile/ship_ammo/grauwolf

html/changelogs/mattatlas-overmapiconfix.yml

@@ -0,0 +1,41 @@
+################################
+# Example Changelog File
+#
+# Note: This file, and files beginning with ".", and files that don't end in ".yml" will not be read. If you change this file, you will look really dumb.
+#
+# Your changelog will be merged with a master changelog. (New stuff added only, and only on the date entry for the day it was merged.)
+# When it is, any changes listed below will disappear.
+#
+# Valid Prefixes:
+#   bugfix
+#   wip (For works in progress)
+#   tweak
+#   soundadd
+#   sounddel
+#   rscadd (general adding of nice things)
+#   rscdel (general deleting of nice things)
+#   imageadd
+#   imagedel
+#   maptweak
+#   spellcheck (typo fixes)
+#   experiment
+#   balance
+#   admin
+#   backend
+#   security
+#   refactor
+#################################
+
+# Your name.
+author: MattAtlas
+
+# Optional: Remove this file after generating master changelog.  Useful for PR changelogs that won't get used again.
+delete-after: True
+
+# Any changes you've made.  See valid prefix list above.
+# INDENT WITH TWO SPACES.  NOT TABS.  SPACES.
+# SCREW THIS UP AND IT WON'T WORK.
+# Also, all entries are changed into a single [] after a master changelog generation. Just remove the brackets when you add new entries.
+# Please surround your changes in  double quotes ("), as certain characters otherwise screws up compiling. The quotes will not show up in the changelog.
+changes:
+  - bugfix: "Grauwolf and Francisca projectiles now actually use their icon on the overmap."