[Feature] add a button to duplicate a chat and use it as a starting context for new chats

[SuperUserNameMan]

Hello,

Feature Request

The idea is this : if I teach something new to the LLM during a chat session, i want to be able to reuse this "teaching chat session" as the starting point of a new chat.

For instance, I could teach the LLM a new programming language, or a new theory, or the content of a book, or whatever.
Once I'm done teaching it, I want to keep this chat session as a "predefined context" or a "predefined starting point".
And each time I want to chat about this topic, I just clone the original chat and resume the chat from this "predefined starting point".

This way, i would not have to teach everything again to the LLM each time I want to explore a new chat about the same topic.

I hope my description was clear :-/