feat(audio): wire menu click feedback

Game/scripts/audio_manager.gd

@@ -9,6 +9,21 @@ const MAX_INTENSITY := 1.0
 var enabled := true
 
 
+func bind_tree_buttons(root: Node) -> void:
+	if root == null:
+		return
+	for node in root.find_children("*", "BaseButton", true, false):
+		bind_button(node as BaseButton)
+
+
+func bind_button(button: BaseButton) -> void:
+	if button == null:
+		return
+	var callback := Callable(self, "play_ui_click")
+	if not button.pressed.is_connected(callback):
+		button.pressed.connect(callback)
+
+
 func play_ui_click() -> void:
 	_play_tone(880.0, 0.045, 0.10)