add back button

assets/design.afdesign

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:034fb07ad84872c283141a5f2ae34989b349cdf77328cab5458a9263f58e4967
-size 2984138
+oid sha256:5dd5bdc3b7b21e92d97979f8e41b363fef7e6f8728aa6cc44ceee80a72c7cf91
+size 3081472

content/ui/menu/menu.gd

@@ -40,6 +40,11 @@ func render_entities():
 
 	var entities = info["entities"]
 
+	var back_button = Entity.instantiate()
+	back_button.click.connect(_on_entity_click)
+	devices_node.add_child(back_button)
+	back_button.set_entity_name("#back")
+	
 	for entity in entities:
 		var entity_instance = Entity.instantiate()
 		entity_instance.click.connect(_on_entity_click)
@@ -56,10 +61,14 @@ func _on_device_click(device_id):
 
 func _on_entity_click(entity_name):
 	print(entity_name)
+
 	selected_device = null
 	clear_menu()
 	render_devices()
 
+	if entity_name == "#back":
+		return
+
 	var type = entity_name.split(".")[0]
 	print(type)