Better than <n/N> for regenerations

Each of the N branches can be long and quite different from the others. So, other than just a number n, it will be good to have a logo, and with editable names and notes. See the attached below.

In the red box is the current visual indicator <n/N>, which I think should be more catchy, with logo and names similar to, but should also be different from, the multi-model indicator.

In the green box is my note to the current Branch2, which could be a new UI feature.

In fact, this will be an easy-to-implement workaround for this request (tho still needs manual management):

https://feedback.typingmind.com/p/manage-per-model-branches-in-a-single-chat

That is, we can add a name or note saying the current regeneration branch is to the, say, “GPT 5 branch“ above.