Moves Hands to shared, some prediction (#3829)

* HandsGuiState

* Gui state setting methods

* code cleanup

* Removes TryGetHands

* ClientHand

* Gui Hands

* Refactor WIP 1

* Hand index

* refactors 2

* wip 3

* wip 4

* wiip 4

* wip 5

* wip 6

* wip 7

* wip 8

* wip 9

* wip 11

* Hand ui mostly looks fine

* hands gui cleanup 1

* cleanup 2

* wip 13

* hand enabled

* stuff

* Hands gui gap fix

* onpressed test

* hand gui buttons events work

* bag activation works

* fix item use

* todo comment

* hands activate fix

* Moves Client Hands back to using strings to identify active hand

* fixes action hand highlighting

* diff fix

* serverhand

* SharedHand

* SharedHand, IReadOnlyHand

* Client Hands only stores SharedHand

* cleanup server hands

* server hand container shutdown

* misc renames, refactors of serverhand

* stuff 1

* stuff 3

* server hand refactor 1

* Undo API changes to remove massive diff

* More API name fixes

* server hands cleanup 2

* cleanup 3

* dropping cleanup

* Cleanup 4

* MoveItemFromHand

* Stuff

* region sorting

* Hand Putter methods cleanup

* stuff 2

* Merges all of serverhand and clienthand into sharedhand

* Other hands systems, hack to make inhands update (gui state set every frame, visualzier updated every frame)

* GetFinalDropCoordinates cleanup

* SwapHands cleanup

* Moves server hands code to shared hands

* Fixed hand selected and deselected

* Naming fixes

* Server hands system cleanup

* Hands privacy fixes

* Client hand updates when containers are modified

* HeldItemVisualizer

* Fixes hand gui item status panel

* method name fix

* Swap hands prediction

* Dropping prediction

* Fixes pickup entity animation

* Fixes HeldItemsVisualizer

* moves item pickup to shared

* PR cleanup

* fixes hand enabling/disabling

* build fix

* Conflict fixes

* Fixes pickup animation

* Uses component directed message subscriptions

* event unsubscriptions in hand system

* unsubscribe fix

* CanInsertEntityIntoHand checks if hand is enabled

* Moving items from one hand to another checks if the hands can pick up and drop

* Fixes stop pulling not re-enabling hand

* Fixes pickup animation for entities containers on the floor

* Fixes using held items

* Fixes multiple hands guis appearing

* test fix

* removes obsolete system sunsubscribes

* Checks IsFirstTimePredicted before playing drop animation

* fixes hand item deleted crash

* Uses Get to get other system

* Replaces AppearanceComponent with SharedAppearanceComponent

* Replaces EnsureComponent with TryGetComponent

* Improves event class names

* Moves property up to top of class

* Moves code for determining the hand visualizer rsi state into the visualizer instead of being determined on hand component

* Eventbus todo comment

* Yaml fix for changed visualizer name

* Makes HandsVisuals a byte

* Removes state from HandsVisualizer

* Fixes hand using interaction method name

* Namespace changes fixes

* Fix for changed hand interaction method

* missing }

* conflict build fix

* Moves cleint HandsSystem to correct folder

* Moved namespace fix for interaction test

* Moves Handsvisualizer ot correct folder

* Moves SharedHandsSystem to correct folder

* Fixes errors from moving namespace of hand systems

* Fixes PDA component changes

* Fixes ActionsComponent diff

* Fixes inventory component diff

* fixes null ref

* Replaces obsolete Loc.GetString usage with fluent translations

* Fluent for hands disarming

* SwapHands and Drop user input specify to the server which hand

* Pickup animation WorldPosiiton todo

* Cleans up hands gui subscription handling

* Fixes change in ActionBlockerSystem access

* Namespace references fixes

* HandsComponent PlayerAttached/Detached messages are handled through eventbus

* Fixes GasCanisterSystem drop method usage

* Fix gameticker equipping method at new location

Co-authored-by: metalgearsloth <31366439+metalgearsloth@users.noreply.github.com>

Content.Server/AI/Operators/Inventory/DropEntityOperator.cs

@@ -20,8 +20,7 @@ namespace Content.Server.AI.Operators.Inventory
         /// <returns></returns>
         public override Outcome Execute(float frameTime)
         {
-            if (!_owner.TryGetComponent(out HandsComponent? handsComponent) ||
-                !handsComponent.TryHand(_entity, out _))
+            if (!_owner.TryGetComponent(out HandsComponent? handsComponent))
             {
                 return Outcome.Failed;
             }