Refactor actions to be entities with components (#19900)

Content.Client/Actions/ActionEvents.cs

@@ -1,11 +1,9 @@
-using Content.Shared.Actions.ActionTypes;
-
 namespace Content.Client.Actions;
 
 /// <summary>
-///     This event is raised when a user clicks on an empty action slot. Enables other systems to fill this slow.
+///     This event is raised when a user clicks on an empty action slot. Enables other systems to fill this slot.
 /// </summary>
 public sealed class FillActionSlotEvent : EntityEventArgs
 {
-    public ActionType? Action;
+    public EntityUid? Action;
 }