Remove SpreaderNodeGroup (#20230)

* Remove SpreaderNodeGroup

* Fix airtight updates

* more smoke stuff

* more smoke fixes

* wtf is smoke code

* Fix merge

* Fix divide by zero

Content.Server/Spreader/EdgeSpreaderComponent.cs

@@ -1,10 +1,14 @@
+using Content.Shared.Spreader;
+using Robust.Shared.Prototypes;
+
 namespace Content.Server.Spreader;
 
 /// <summary>
-/// Added to entities being considered for spreading via <see cref="SpreaderSystem"/>.
-/// This needs to be manually added and removed.
+/// Entity capable of becoming cloning and replicating itself to adjacent edges. See <see cref="SpreaderSystem"/>
 /// </summary>
 [RegisterComponent, Access(typeof(SpreaderSystem))]
 public sealed partial class EdgeSpreaderComponent : Component
 {
+    [DataField(required:true)]
+    public ProtoId<EdgeSpreaderPrototype> Id;
 }