Small UI refactor pieces (#11026)

* ActionType rename Name to DisplayName

* Gameplay State rename+move

Content.Client/Outline/InteractionOutlineSystem.cs

@@ -1,4 +1,5 @@
 using Content.Client.ContextMenu.UI;
+using Content.Client.Gameplay;
 using Content.Client.Interactable.Components;
 using Content.Client.Viewport;
 using Content.Shared.CCVar;
@@ -109,7 +110,7 @@ public sealed class InteractionOutlineSystem : EntitySystem
         // Potentially change someday? who knows.
         var currentState = _stateManager.CurrentState;
 
-        if (currentState is not GameScreen screen) return;
+        if (currentState is not GameplayState screen) return;
 
         EntityUid? entityToClick = null;
         var renderScale = 1;