Add Harbor

[thsnkhn]

0. I have read the Contribution Guidelines
1. I confirm that I have read and understood the sections about "AI"-adjacent software
2. Project URL: https://github.com/tahseen-kakar/harbor
3. Why should this project be added: Harbor is a free, open-source download manager for direct downloads, magnet links, and .torrent files.
4. End all descriptions with a full stop/period
5. Entry is ordered alphabetically
6. Appropriate icon(s) added if applicable (OSS, freeware)

[herrbischoff]

@thsnkhn, I've just tested it with a Debian torrent link. Not a magnet link, a URL pointing to a torrent file. The app does download the torrent file but does nothing with it afterwards. That really seems like an obvious oversight. It should download the torrent file and transparently start downloading the files it points to.

[thsnkhn]

@herrbischoff thanks for pointing it out. will mention you once this is fixed.

[thsnkhn]

@herrbischoff its fixed now. please download a new version from: https://github.com/thsnkhn/harbor/releases/tag/v1.3.1