Livestreams support

After a couple of months, youtube livestreams are now supported!

A new section called "livestream monitor" has been added.

If you add a livestream that has yet to start it will be monitored and downloaded once started;
if an already started livestream is added it will be downloaded but no progress will be tracked (this is a limitation of yt-dlp since it uses ffmpeg to download livestreams).

What's Changed

• i18n: add swedish by @emanueljg in #179
• Feat livestream support by @marcopeocchi in #180
• CHORE: update translation files by @ja49619 in #181
• filemame to filename by @aegershman in #182

New Contributors

• @emanueljg made their first contribution in #179
• @ja49619 made their first contribution in #181
• @aegershman made their first contribution in #182

Full Changelog: v3.1.2...v3.2.0