[Minds] Add new extractor

[Tatsh]

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• At least skimmed through adding new extractor tutorial and youtube-dl coding conventions sections
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What is the purpose of your pull request?

• Bug fix
• Improvement
• New extractor
• New feature

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This adds support for Minds' channel pages, single newsfeed pages, and media pages which play a video. Fixes issue #13220.

This requires cookies to work even if not logged as the XSRF-TOKEN string must be used with all API calls. The x-xsrf-token header value used in API calls is taken from cookies. If you have your XSRF taken from the site, you can save it to a file like so:

printf '.minds.com\tTRUE\t/\tTRUE\t15624050615\tXSRF-TOKEN\t< TOKEN VALUE HERE >\n' >> ~/.ytdl-minds-cookies

Then use cookies:

youtube-dl --cookies ~/.ytdl-minds-cookies 'https://www.minds.com/ottman'

This closes #13220

[Tatsh]

@dstftw Please review again since the last commit.

[rudolphos]

Are there any updates to this?

using latest version

ERROR: Unsupported URL: https://www.minds.com/newsfeed/..

[Tatsh]

The general newsfeed is not supported in this PR but that would not be too hard to support. Only /newsfeed/<some ID here> newsfeed URLs are supported.

[Tatsh]

Bump

[Tatsh]

@dstftw If you want me to make changes, I'll need to re-make this PR. I asked GitHub and they cannot fix branch references.