Consolidate the "Project Summaries" by removing items and grouping the remaining ones

Should we consolidate the list "Project Summaries" a bit? Currently it is very long, and the order is quite random. I'd propose two changes to mitigate that:

1. remove things that are not really relevant
2. structure the items by use case

Below there's a list of all projects currently listed, with a remark about last update and "github popularity". In my opinion we could remove half of the projects here and group the remaining ones by use case.

For the non-pypa projects I suggest to remove the ones that are clearly unmaintained and (rather aggressively) the ones with a very low "github popularity". For the pypa projects, we could remove the more "fringe" cases projects, but we may not have to. Again, the goal being to have a useful overview for the users about the tools of the trade instead of a random selection of things with little relation to each other.

The grouping by use case is a bit more difficult as we'd need to settle for a set of tags or so first before we can start grouping the items accordingly.

Inizia esaminando la pagina attuale “Project Summaries” e l’inventario completo dei progetti in questa issue. Identifica quali progetti rimangono e stabilisci raggruppamenti o tag per caso d’uso prima di apportare modifiche. Il lavoro è completato quando la panoramica è più breve, organizzata in base ai casi d’uso concordati ed esclude i progetti ritenuti irrilevanti o non mantenuti.