Upgrade StoragePlease remember the folding state of the multi-level menu on the left
Remember the folding state of the multi-level menu on the left. It allows opening or closing individual menus and their next-level subdirectories without the need to open or fold all of them, and this state remains when the software is launched next time.
记忆左侧多级菜单的折叠状态，打开或关闭单独的菜单及其下一级子目录，不需要全部打开或折叠，而且在下次启动软件时也保持状态；