Feature Request: Batch Export for Multiple Conversations

[W3STY11]

First of all, great extension! It's exactly what I needed for saving Perplexity conversations in a clean markdown format.

I was wondering - would it be possible to implement a batch export feature? Currently, we need to manually click the extension button for each conversation thread. Having the ability to export all conversations at once (maybe with options to select date ranges or specific folders) would be super helpful for those of us who want to archive multiple threads efficiently.

This would be especially useful for knowledge management and comprehensive backups. Let me know if this is something you might consider adding to future versions!