[Feature] Seperate Stalled Downloads for SABNZDB + QBittorrent Configs

[mrtimothyduong]

What problem does this solve?

Currently remove_stalled applies to both SABNZDB + QBIT download_clients

So If I am downloading a large download (even just 1) pack, Decluttar can't see the download/rate from sabnzdb OR even worse, if there's a queue in SAB, cause there's 100's of episodes, it'll cull all those.

By having another 'opt-in' / override, will ensure declutter treats stalled downloads differently from non-qbit downloads.

Proposed solution

Have optional / opt-in non-qbit settings in config.yaml or docker compose

E.g. nonqbit_remove_stalled

Alternatives considered

Bandaid fix 1: Disable remove_stalled and remove_slow which applies to both SAB + QBIT

Anything else?

Bandaid fix as mentioned stops decluttarr from being overzealous and removing SABNZDB downloads but it would be good to have qbittorrent functioning.