Show Dirs first (alphabetically), and then File after (alphabetically) - Option Request

If I use the option '--sort-by-type-dirs-first' then 'broot' puts the dirs first (good!) but then the files which follow below are sorted by type, not by alphabetical filename (bad!)

So to repeat: Please add a (command-line) option for 'broot' to show Dirs first (alphabetical) and then the Files after, but also alphabetically sorted.

Start by tracing the implementation of the existing --sort-by-type-dirs-first option and its directory-entry sorting logic. Reproduce the current behavior with a directory containing mixed names and types; done means directories appear first in alphabetical filename order, followed by files in alphabetical filename order.

Written by the indexing model from the issue text.