new function of saving the history

[jibin5167]

First of all, thank you for developing and sharing such an excellent and useful academic tool. I have run it on my PC. However, when I use this tool, I find it cannot save the history. I mean that when I restart the tool, the earlier history will disappear. I'm wondering if it's possible to add such a function of saving the history, just as the openAI ChatGPT does. Thank you.