Interaction clean up (#4091)

* Rename and clean up interaction events

* Fix hand equip events

* Refactor duplicate client input validation

* Rename Use handler

* Move unneeded InRangeUnobstructed methods to extensions only

* Clean up UseInteractions

* Clean up ActivateItemInWorld

* Replace explicit range check with InRangeUnobstructed

Remove TransformComponent check, since transform is guaranteed now.

* Revert transform check removal

* More cleanup

* Reorder interaction checks

* Rename attack eventargs to interact

* Test V1

* Add interaction test

* Fix interaction test

* Fix container interaction test

* Rename interaction methods

* Rename player to user and attacked to target

* Clean up InteractAfter

* Clean up InRangeUnobstructed usages

* Rename attack to interact and weapon to used

* Changed can't reach message to only play when holding something

Cleaned up bracket formatting

* Fix Airtight validation check

* Remove extra words in comments

* Fix FaceClick rotation

* Move duplicate map check and face to method

* Fix test

Content.Shared/Interfaces/GameObjects/Components/Interaction/IInteractHand.cs

@@ -35,7 +35,7 @@ namespace Content.Shared.Interfaces.GameObjects.Components
     ///     Raised when a target entity is interacted with by a user with an empty hand.
     /// </summary>
     [PublicAPI]
-    public class AttackHandEvent : HandledEntityEventArgs
+    public class InteractHandEvent : HandledEntityEventArgs
     {
         /// <summary>
         ///     Entity that triggered the interaction.
@@ -47,7 +47,7 @@ namespace Content.Shared.Interfaces.GameObjects.Components
         /// </summary>
         public IEntity Target { get; }
 
-        public AttackHandEvent(IEntity user, IEntity target)
+        public InteractHandEvent(IEntity user, IEntity target)
         {
             User = user;
             Target = target;