Added torrent magnet links to downloads page

[HardenedSteel]

• Torrent icon for downloads page is missing.
• Hashes are same, not changed.
• New PGP signed hashes.txt should be created with torrent hashes.

Monero GUI magnet link: magnet:?xt=urn:btih:706beb780e3e8a4e1c7a3a76328a37bb125e1ae1&dn=MoneroGUI-0.17.3.1-Oxygen-Orion&tr=udp%3a%2f%2ftracker.opentrackr.org%3a1337%2fannounce&tr=udp%3a%2f%2fopen.tracker.cl%3a1337%2fannounce&tr=udp%3a%2f%2fwww.torrent.eu.org%3a451%2fannounce

Monero CLI magnet link: magnet:?xt=urn:btih:ebe3bb8119d02ed05fa8c699fd11c964f6aab32f&dn=MoneroCLI-0.17.3.0-Oxygen%20Orion&tr=udp%3a%2f%2ftracker.opentrackr.org%3a1337%2fannounce&tr=udp%3a%2f%2fopen.tracker.cl%3a1337%2fannounce&tr=udp%3a%2f%2fwww.torrent.eu.org%3a451%2fannounce

If something missing tell me so i can (try) fix.

Closes #1629

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[HardenedSteel]

The link doesn't appear on the mobile website

[HardenedSteel]

@erciccione am i missing something? What is the reason for don't? Verification and maintaining quite easy.

[selsta]

This would have to be done by the core team, otherwise it's a mess every time we update new versions and the torrent stays outdated.

[selsta]

@HardenedSteel What erciccione meant with styling is that this looks broken on the website, missing icon and also wrong position.

Also just to clarify, would this be a torrent for all operating systems?

[HardenedSteel]

@selsta Wrong position causing from there's no torrent icon, also yes it's torrent for all operating systems.