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/Mech/Systems/MechSystem.cs

@@ -303,15 +303,14 @@ public sealed partial class MechSystem : SharedMechSystem
         {
             EquipmentStates = ev.States
         };
-        var ui = _ui.GetUi(uid, MechUiKey.Key);
-        _ui.SetUiState(ui, state);
+        _ui.SetUiState(uid, MechUiKey.Key, state);
     }
 
     public override void BreakMech(EntityUid uid, MechComponent? component = null)
     {
         base.BreakMech(uid, component);
 
-        _ui.TryCloseAll(uid, MechUiKey.Key);
+        _ui.CloseUi(uid, MechUiKey.Key);
         _actionBlocker.UpdateCanMove(uid);
     }