Post Light sprite fix and state (#8578)

* adjusted post light sprite and added empty state

* update construction location

Resources/Prototypes/Entities/Structures/Lighting/ground_lighting.yml

@@ -47,7 +47,7 @@
     graph: LightFixture
     node: tubeLight
   - type: Sprite
-    sprite: Structures/Decoration/LightPosts/small_light_post.rsi
+    sprite: Structures/Lighting/LightPosts/small_light_post.rsi
     layers:
     - state: on
       map: ["enum.PoweredLightLayers.Base"]
@@ -67,7 +67,7 @@
   parent: BaseLightStructure
   components:
   - type: Sprite
-    sprite: Structures/Decoration/LightPosts/small_light_post.rsi
+    sprite: Structures/Lighting/LightPosts/small_light_post.rsi
     state: off
   - type: PointLight
     enabled: false

Resources/Prototypes/Recipes/Construction/structures.yml

@@ -460,7 +460,7 @@
   category: Structures
   description: A ground light fixture. Use light bulbs.
   icon:
-    sprite: Structures/Decoration/LightPosts/small_light_post.rsi
+    sprite: Structures/Lighting/LightPosts/small_light_post.rsi
     state: off
   objectType: Structure
   placementMode: SnapgridCenter

Resources/Textures/Structures/Lighting/LightPosts/small_light_post.rsi/meta.json

@@ -12,6 +12,9 @@
     },
     {
       "name": "on"
+    },
+    {
+      "name": "empty"
     }
   ]
 }