[ADN] Implement login

[adrianheine]

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• Bug fix
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Description of your pull request and other information

Closes #27841.

[remitamine]

extraction should not stop if login process fails.

[MrTechyyy]

Thanks for the fix, really appreciate it!

[Azzuray]

Download now works fine with --username --password ✅ but subtittle decrypt doesnt work ❌

Edit subs works fine on "free videos"

edit 2 : Its workings fine xd, made a mistake in my cmd script 😄

[adrianheine]

extraction should not stop if login process fails.

You sure? I think if I provide login credentials but they are wrong I wouldn't expect extraction to silently continue, given that not being logged in might mean lower quality.

[remitamine]

extraction should not stop if login process fails.

You sure? I think if I provide login credentials but they are wrong I wouldn't expect extraction to silently continue, given that not being logged in might mean lower quality.

not silently, there would be a warning.

[adrianheine]

Hmm … I think I'd rather have people remove their login credentials if there's a problem but I can also agree with a warning.

[remitamine]

an account is needed to check the code locally.