* Add commands to compleseus+fasd layer (locate,yasnippet,search-from)
* Add metadata classifier (for embark) to fasd-layer
Embark uses metadata of the target under point to determine actions. If the
target lacks a metadata classifier then the [embark
documentation](https://github.com/oantolin/embark#acting-on-targets) recommends
to [add them using the marginalia package](https://github.com/minad/marginalia#adding-custom-annotators-or-classifiers).
This PR adds the file classifier to results for fasd searches.
Built on consult embark orderless selectrum/vertico.
It's been working ok. Basic features are in, let's merge it and let our community
improve it togegher :)
