plugins.euronews: fix and rewrite plugin

[bastimeyer]

Fixes #5062

Actually worthy of a plugin removal, because the vast majority of live streams are just embedded youtube streams, so the plugin is just a wrapper plugin except for a few languages and for VODs. And some languages aren't even supported by the plugin, as euronews is using different websites for those languages.

$ echo -e 'from tests.plugins.test_euronews import TestPluginCanHandleUrlEuronews as test\nfor item in test.should_match:print(item)' \
  | python \
  | xargs -P1 -n1 streamlink
[cli][info] Found matching plugin euronews for URL https://www.euronews.com/live
Available streams: 144p (worst), 240p, 360p, 480p, 720p (best)
[cli][info] Found matching plugin euronews for URL https://fr.euronews.com/live
Available streams: 144p (worst), 240p, 360p, 480p, 720p (best)
[cli][info] Found matching plugin euronews for URL https://de.euronews.com/live
Available streams: 144p (worst), 240p, 360p, 480p, 720p (best)
[cli][info] Found matching plugin euronews for URL https://it.euronews.com/live
Available streams: 144p (worst), 240p, 360p, 480p, 720p (best)
[cli][info] Found matching plugin euronews for URL https://es.euronews.com/live
Available streams: 144p (worst), 240p, 360p, 480p, 720p (best)
[cli][info] Found matching plugin euronews for URL https://pt.euronews.com/live
Available streams: 144p (worst), 240p, 360p, 480p, 720p (best)
[cli][info] Found matching plugin euronews for URL https://ru.euronews.com/live
Available streams: 144p (worst), 240p, 360p, 480p, 720p (best)
[cli][info] Found matching plugin euronews for URL https://ua.euronews.com/live
Available streams: 144p (worst), 240p, 360p, 480p, 720p (best)
[cli][info] Found matching plugin euronews for URL https://tr.euronews.com/live
Available streams: 240p (worst), 360p, 480p, 576p, 720p_alt, 720p (best)
[cli][info] Found matching plugin euronews for URL https://gr.euronews.com/live
Available streams: 144p (worst), 240p, 360p, 480p, 720p (best)
[cli][info] Found matching plugin euronews for URL https://hu.euronews.com/live
Available streams: 144p (worst), 240p, 360p, 480p, 720p (best)
[cli][info] Found matching plugin euronews for URL https://fa.euronews.com/live
Available streams: 240p (worst), 360p, 480p, 576p, 720p_alt, 720p (best)
[cli][info] Found matching plugin euronews for URL https://arabic.euronews.com/live
Available streams: 144p (worst), 240p, 360p, 480p, 720p (best)
[cli][info] Found matching plugin euronews for URL https://www.euronews.com/video
Available streams: vod (worst, best)
[cli][info] Found matching plugin euronews for URL https://www.euronews.com/2023/01/02/giving-europe-a-voice-television-news-network-euronews-turns-30
Available streams: vod (worst, best)

[gravyboat]

Actually worthy of a plugin removal

Do you want to fix it then remove it or just remove it in this PR?

[bastimeyer]

I'm not sure. We can merge this fix, but IMO, this plugin is a bit pointless. It may only be useful if euronews restart their live streams lots of times on YouTube and the IDs switch because of that, but even then it's still a wrapper plugin.

Anyone else's opinion?

[mkbloke]

*Shrugs*

I don't suppose many folks are using this; it's probably been borked for ages.

Could merge it for now and then review the next time an issue is reported?