Fix error added by qbittorrent 5.0 pymedusa/Medusa#11844

[borntohonk]

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Proposed fixes for error(s) from https://github.com/pymedusa/Medusa/issues/11844 caused by qbittorrent 5.0 api changes, which for reasons unknown to mortal man is that they changed "pause/paused" to "stop/stopped", and "resume/resumed" to "start".

Things addressed/fixed:

• Download handler is unable to process completed & "stopped" torrents (completed & uploading/seeding worked fine), which affects people who don't seed or if the download handlers schedule is slower than seeding goal is hit.

• Log-level error spawned from not being able to parse this new unknown "stopped" state.

Also tested: qQbittorrent v4.6.7, to ensure new changes to accommodate qQbittorrent v5.0+ does not negatively affect previous version(s)