Set airlock unlit layers as invisible (space-wizards#32484)

Doesn't really affect anything due to appearance bulldozing this but this aligns with their actual normal states so.

Author: metalgearsloth

Resources/Prototypes/Entities/Structures/Doors/Airlocks/base_structureairlocks.yml

@@ -20,6 +20,7 @@
     - state: closed_unlit
       shader: unshaded
       map: ["enum.DoorVisualLayers.BaseUnlit"]
+      visible: false
     - state: welded
       map: ["enum.WeldableLayers.BaseWelded"]
     - state: bolted_unlit

Resources/Prototypes/Entities/Structures/Doors/Airlocks/highsec.yml

@@ -16,6 +16,7 @@
     - state: closed_unlit
       shader: unshaded
       map: ["enum.DoorVisualLayers.BaseUnlit"]
+      visible: false
     - state: welded
       map: ["enum.WeldableLayers.BaseWelded"]
     - state: bolted_unlit

Resources/Prototypes/Entities/Structures/Doors/Airlocks/shuttle.yml

@@ -37,6 +37,7 @@
     - state: closed_unlit
       shader: unshaded
       map: ["enum.DoorVisualLayers.BaseUnlit"]
+      visible: false
     - state: welded
       map: ["enum.WeldableLayers.BaseWelded"]
     - state: bolted_unlit

Resources/Prototypes/Entities/Structures/Doors/Windoors/base_structurewindoors.yml

@@ -32,6 +32,7 @@
     - state: closed_unlit
       shader: unshaded
       map: ["enum.DoorVisualLayers.BaseUnlit"]
+      visible: false
     - state: welded
       map: ["enum.WeldableLayers.BaseWelded"]
     - state: bolted_unlit
@@ -164,6 +165,7 @@
     - state: closed_unlit
       shader: unshaded
       map: [ "enum.DoorVisualLayers.BaseUnlit" ]
+      visible: false
     - state: welded
       map: [ "enum.WeldableLayers.BaseWelded" ]
     - state: bolted_unlit
@@ -224,6 +226,7 @@
     - state: closed_unlit
       shader: unshaded
       map: [ "enum.DoorVisualLayers.BaseUnlit" ]
+      visible: false
     - state: welded
       map: [ "enum.WeldableLayers.BaseWelded" ]
     - state: bolted_unlit
@@ -279,6 +282,7 @@
     - state: closed_unlit
       shader: unshaded
       map: [ "enum.DoorVisualLayers.BaseUnlit" ]
+      visible: false
     - state: welded
       map: [ "enum.WeldableLayers.BaseWelded" ]
     - state: bolted_unlit
@@ -339,6 +343,7 @@
     - state: closed_unlit
       shader: unshaded
       map: [ "enum.DoorVisualLayers.BaseUnlit" ]
+      visible: false
     - state: welded
       map: [ "enum.WeldableLayers.BaseWelded" ]
     - state: bolted_unlit
@@ -394,6 +399,7 @@
     - state: closed_unlit
       shader: unshaded
       map: [ "enum.DoorVisualLayers.BaseUnlit" ]
+      visible: false
     - state: welded
       map: [ "enum.WeldableLayers.BaseWelded" ]
     - state: bolted_unlit