Content update for UI prediction (#27214)

* Content update for UI refactor

* Big update

* Sharing

* Remaining content updates

* First big update

* Prototype updates

* AUGH

* Fix UI comp ref

* Cleanup

- Fix predicted message, fix item slots, fix interaction range check.

* Fix regressions

* Make this predictive

idk why it wasn't.

* Fix slime merge

* Merge conflict

* Fix merge

Content.Server/Atmos/Monitor/Components/AirAlarmComponent.cs

@@ -24,8 +24,6 @@ public sealed partial class AirAlarmComponent : Component
     public readonly Dictionary<string, GasVentScrubberData> ScrubberData = new();
     public readonly Dictionary<string, AtmosSensorData> SensorData = new();
 
-    public HashSet<NetUserId> ActivePlayers = new();
-
     public bool CanSync = true;
 
     /// <summary>