[Feature Request] add a button to delete a conversation chat history in Web GUI

[passthesh3ll]

Is your feature request related to a problem? Please describe.
Sometimes I need to fresh a chat wiping all its history but witout opening a new chat because it has settings, a custom prompt etc. Delete every single message by hand is time consuming.

Describe the solution you'd like
Add a button near the chat baloon to wipe all history in the current chat

Describe alternatives you've considered
n/a

Additional context