display verified badge for verified publishers

[jkup]

• 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).

Auditors @bbondy @bradleyrichter

Fix #3467

Test Plan:

I don't have a real way to test this yet as the verified status isn't coming down from the ledger but ideally you'd visit a "verified" site like brianbondy.com and then when you look in the payments tab of settings you'll see a little green circle with a white checkbox in it.

If you'd like to test it you can just set verified to true in https://github.com/brave/browser-laptop/blob/verified-badge/js/about/preferences.js#L251 (then you'll see it for all publishers)

[jkup]

Now that wallet creation is fixed, this code works and can be tested/shipped!

cc @bbondy

[bbondy]

++

[mrose17]

looks fine to me.