Specify path to save session

[t18n]

First off, thanks for the awesome plugin. I discovered it yesterday and it is a game changer 🔥

Where do we currently store the session data? Furthermore, I would like to request a feature to specify the path/database to store the session data for backup purposes.

[banchaa]

Thumbs up for suggestion!

The sessions should be stored in JSON format under the path ~/.local/state/nvim/chatgpt/