Chatbot: Filter/Sorting

Feature request from Rohit and team:
Ability to sort conversations: In Developer Lightspeed we would like to have an ability to sort conversations in the navigation sidebar

<img width="330" height="426" alt="Image" src="https://github.com/user-attachments/assets/a4440fe7-0550-45e4-be6a-7d74bcfa1533" />