Beam: continue chats in beam per model, or with all models

[dandv]

Beam: continue chats in beam per model, or with all models

[enricoros]

Thanks for the request, probably the least intrusive way to keep chatting would be to show a "message bubble" on the bottom-left corner (the bottom-right has the "done" actions). #483

Once the message bubble is pressed, it should show a small 1-line input box, which could be used to chat (very simple traditional text chat) with the individual response, and the assumption is that the last response in each "thread" is the one considered for the merge.