Is your feature request related to a problem? Please describe.
If you for example want to list all revsets and revset-aliases, this currently is a bit cumbersome, you have to use a custom template to do it that filters the entries.
Describe the solution you'd like
WIth this you could for example do
jj config list revsets revset-aliases
or
jj config list glob:"revset*"
Describe alternatives you've considered
jj config list -T 'if (name.starts_with("revset"), builtin_config_list_detailed)'