[Feature request] Adding support for marginalia

[fast-90]

First of all, thanks for this awesome package!

Whilst using justl, I was thinking how awesome it would be if the recipe descriptions would appear as annotations (e.g. with marginalia) in the justl-exec-recipe-in-dirmenu. Unfortunately my Elisp skills are non-existent, but I thought I'd share the idea in case someone feels like picking it up.

[psibi]

Thanks, glad that you like the package!

Right now Emacs doesn't provide a native API for such feature. There are some hacks, but they can break under various scenarios: https://emacs.stackexchange.com/questions/74547/completing-read-search-also-in-annotations

Given the situation, I don't think there is a good way to add such support for it.