Fixed background inventory screens not being clickable (#19284)

Fixed background inventory screens not being clickable.
Clicking on a storage item that is already open now closes it.

Fixes #18880

code/__DEFINES/layers.dm

@@ -157,6 +157,7 @@
 #define HUD_PLANE 7
 	#define UNDER_HUD_LAYER 1
 	#define HUD_BASE_LAYER 2
+	#define HUD_BELOW_ITEM_LAYER 2.9
 	#define HUD_ITEM_LAYER 3
 	#define HUD_ABOVE_ITEM_LAYER 4
 	#define RADIAL_BACKGROUND_LAYER 5

code/_onclick/hud/screen_objects.dm

@@ -139,6 +139,8 @@
 /obj/screen/storage
 	name = "storage"
 	screen_loc = "7,7 to 10,8"
+	plane = HUD_PLANE
+	layer = HUD_BASE_LAYER
 
 /obj/screen/storage/Click()
 	if(!usr.canClick())
@@ -153,7 +155,7 @@
 
 /obj/screen/storage/background
 	name = "background storage"
-	layer = HUD_BASE_LAYER
+	layer = HUD_BELOW_ITEM_LAYER
 
 /obj/screen/storage/background/Initialize(mapload, var/obj/set_master, var/set_icon_state)
 	. = ..()

code/game/objects/items/weapons/storage/storage.dm

@@ -765,7 +765,11 @@
 			return
 
 	if (src.loc == user)
-		src.open(user)
+		//If the storage is already open, close it, otherwise open it
+		if(user.s_active == src)
+			src.close(user)
+		else
+			src.open(user)
 	else
 		..()
 		for(var/mob/M in range(1, get_turf(src)) - user)

html/changelogs/fluffyghost-fixbackgroundinventoryscreens.yml

@@ -0,0 +1,59 @@
+################################
+# 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
+#     - (fixes bugs)
+#   wip
+#     - (work in progress)
+#   qol
+#     - (quality of life)
+#   soundadd
+#     - (adds a sound)
+#   sounddel
+#     - (removes a sound)
+#   rscadd
+#     - (adds a feature)
+#   rscdel
+#     - (removes a feature)
+#   imageadd
+#     - (adds an image or sprite)
+#   imagedel
+#     - (removes an image or sprite)
+#   spellcheck
+#     - (fixes spelling or grammar)
+#   experiment
+#     - (experimental change)
+#   balance
+#     - (balance changes)
+#   code_imp
+#     - (misc internal code change)
+#   refactor
+#     - (refactors code)
+#   config
+#     - (makes a change to the config files)
+#   admin
+#     - (makes changes to administrator tools)
+#   server
+#     - (miscellaneous changes to server)
+#################################
+
+# Your name.
+author: FluffyGhost
+
+# 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, this gets changed to [] after reading.  Just remove the brackets when you add new shit.
+# Please surround your changes in  double quotes ("). It works without them, but if you use certain characters it screws up compiling. The quotes will not show up in the changelog.
+changes:
+  - bugfix: "Fixed background inventory screens not being clickable."
+  - rscadd: "Clicking on a storage item that is already open now closes it."