* Change silenced accounts to require approval on follow
* Also require approval for follows by people explicitly muted by target accounts
* Do not auto-accept silenced or muted accounts when switching from locked to unlocked
* Add `follow_requests_count` to verify_credentials
* Show “Follow requests” menu item if needed even if account is locked
* Add tests
* Correctly reflect that follow requests weren't auto-accepted when local account is silenced
* Accept follow requests from user-muted accounts to avoid leaking mutes
UX-wise, people expect that saving the profile will re-check links even without changing fields content. Bug-wise, `@account` was undefined.
Regression from #8703
* Verify link ownership with rel="me"
* Add explanation about verification to UI
* Perform link verifications
* Add click-to-copy widget for verification HTML
* Redesign edit profile page
* Redesign forms
* Improve responsive design of settings pages
* Restore landing page sign-up form
* Fix typo
* Support <link> tags, add spec
* Fix links not being verified on first discovery and passive updates
