Changing browser tab title for Jupyter

This is essentially the same as jupyter/jupyterlab#4422 but for notebook

It would be really helpful if the `notebook` subcommand could support a `--name` or `--tag` parameter to set the browser tab title and allow users to tell which environment/instance they are hitting when they are running multiple notebooks from different environments

I see 2 alternative features here: either let user to set the title completely, or let them add a "tag" which would be appended to all secondary tabs spawned by the primary file browser window.

Start by reviewing the notebook subcommand and the browser tab behavior for the primary file browser window and its secondary tabs. Resolve whether the feature should set a complete title or append a user-provided tag, then verify that the chosen behavior distinguishes multiple notebook environments and instances.

Written by the indexing model from the issue text.