Firestarter fixes (#24647)

* Firestarter fixes

- Actually networks the action.
- Namespace fixes.

* No networky for you

Content.Shared/Atmos/EntitySystems/SharedFirestarterSystem.cs

@@ -0,0 +1,24 @@
+using Content.Shared.Actions;
+using Content.Shared.Atmos.Components;
+
+namespace Content.Shared.Atmos.EntitySystems;
+
+public abstract class SharedFirestarterSystem : EntitySystem
+{
+    [Dependency] private readonly SharedActionsSystem _actionsSystem = default!;
+
+    public override void Initialize()
+    {
+        base.Initialize();
+        SubscribeLocalEvent<FirestarterComponent, ComponentInit>(OnComponentInit);
+    }
+
+    /// <summary>
+    /// Adds the firestarter action.
+    /// </summary>
+    private void OnComponentInit(EntityUid uid, FirestarterComponent component, ComponentInit args)
+    {
+        _actionsSystem.AddAction(uid, ref component.FireStarterActionEntity, component.FireStarterAction, uid);
+        Dirty(uid, component);
+    }
+}