Nuke fancification (#25297)

Actually use more icon states for deployed/armed/about to explode

Also unlit layer.

Also examine text

Content.Shared/Nuke/SharedNuke.cs

@@ -3,6 +3,27 @@ using Robust.Shared.Serialization;
 
 namespace Content.Shared.Nuke
 {
+    public enum NukeVisualLayers
+    {
+        Base,
+        Unlit
+    }
+
+    [NetSerializable, Serializable]
+    public enum NukeVisuals
+    {
+        Deployed,
+        State,
+    }
+
+    [NetSerializable, Serializable]
+    public enum NukeVisualState
+    {
+        Idle,
+        Armed,
+        YoureFucked
+    }
+
     [Serializable, NetSerializable]
     public enum NukeUiKey : byte
     {