Move interactable input handling into Player2D so we can selectively block it from working if OldComputer is open

We probably could have special-cased that check in Interactable now that I think about it

player_2d.gd

@@ -123,6 +123,10 @@ func _process(delta: float) -> void:
 			%OldComputer.close()
 		return
 	
+	if Input.is_action_just_released("interact"):
+		for interactable in get_tree().get_nodes_in_group("nearby_interactables"):
+			interactable.interact()
+	
 	if Input.is_action_just_pressed("jump"):
 		%OldComputer.close()