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.Shared/Containers/ItemSlot/ItemSlotsSystem.cs

@@ -626,9 +626,9 @@ namespace Content.Shared.Containers.ItemSlots
                 return;
 
             if (args.TryEject && slot.HasItem)
-                TryEjectToHands(uid, slot, args.Session.AttachedEntity, false);
-            else if (args.TryInsert && !slot.HasItem && args.Session.AttachedEntity is EntityUid user)
-                TryInsertFromHand(uid, slot, user);
+                TryEjectToHands(uid, slot, args.Actor, true);
+            else if (args.TryInsert && !slot.HasItem)
+                TryInsertFromHand(uid, slot, args.Actor);
         }
         #endregion