Refactor transcript scraping to use Android innertube API

[jdepoix]

This PR refactors the way the captions json is retrieved from scraping it from the /watch html to fetching it from the innertube API.

While this allows us to work around the PO token enforcement for now, I didn't get cookie based authentication to work for the time being and therefore had to temporarily disable this feature, to be able to provide a fix to the issue ASAP. Other than that, all features seemed to work as expected in my testing (fetching transcript in different languages, listing transcripts, translating transcripts, using Webshare proxies to work around IP bans).

[coveralls]

Pull Request Test Coverage Report for Build 15596854143

Warning: This coverage report may be inaccurate.

This pull request's base commit is no longer the HEAD commit of its target branch. This means it includes changes from outside the original pull request, including, potentially, unrelated coverage changes.

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Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 100.0%

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Totals
Change from base Build 14612450470:	0.0%
Covered Lines:	513
Relevant Lines:	513

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💛 - Coveralls

[0xRaduan]

@jdepoix – tested this, works pretty reliably(on local)

[dellis23]

I don't know what any of this means, but I just wanted to say I appreciate you fixing the issues with this so quickly.

[jdepoix]

@dellis23 I appreciate your appreciation 😀🙏