Fixes verfied check for YouTube

[NejcZdovc]

Resolves #14351

Submitter Checklist:

• Submitted a ticket for my issue if one did not already exist.
• Used Github auto-closing keywords in the commit message.
• Added/updated tests for this change (for new code or code which already has tests).
• Ran git rebase -i to squash commits (if needed).
• Tagged reviewers and labelled the pull request as needed.
• Request a security/privacy review as needed. (Ask a Brave employee to help if you cannot access this document.)

Test Plan:

• visit verified youtube channels (more in YouTube channels not showing verified icon on ledger table #14351) and make sure that verified check is added to them
• make sure that twitch did not regressed

Reviewer Checklist:

• Request a security/privacy review as needed if one was not already requested.

Tests

• Adequate test coverage exists to prevent regressions
• Tests should be independent and work correctly when run individually or as a suite ref
• New files have MPL2 license header

[mrose17]

most excellent!

[LaurenWags]

Checked the following:

• if a non-media publisher is verified, still displays the verified check mark
• if a non-media publisher is not verified, still does not display verified check mark
• if a YT channel is verified, now displays the verified check mark
• if a YT channel is not verified, does not display verified check mark

Also found that verified twitch publishers are not displaying the verified check mark.

[bsclifton]

master 52838d0
0.24.x febef50
0.23.x 2d69694