[Feature request] use sponsorblock during downloading

[smellymoo]

Checklist (Your issue will be automatically closed if you delete this part)

• I make sure that there are no existing issues - open or closed - which I could contribute my information to.
• I believe this feature request will benefit more than 10% of users, not just myself.

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** Description
Great work on improving Newpipe with sponsorblock, very impressive...

Big issue is that when downloading, it doesn't use sponsorblock, which means you can't for example download a whole audio playlist and enjoy it properly.

[InfinityLoop1308]

As we turn to Seal in 5.0, this is now supported by its underlying yt-dlp - docs can be found here.