air alarm signal ports and other stuff (#18642)

Co-authored-by: deltanedas <@deltanedas:kde.org>

Content.Server/DeviceNetwork/Systems/WiredNetworkSystem.cs

@@ -17,7 +17,7 @@ namespace Content.Server.DeviceNetwork.Systems
         /// </summary>
         private void OnBeforePacketSent(EntityUid uid, WiredNetworkComponent component, BeforePacketSentEvent args)
         {
-            if (EntityManager.GetComponent<TransformComponent>(uid).GridUid != args.SenderTransform.GridUid)
+            if (Transform(uid).GridUid != args.SenderTransform.GridUid)
             {
                 args.Cancel();
             }