This PR adds section for protocol specific information, then always show
both of OStatus and ActivityPub. Specifically, this will help admins to
check PuSH subscription status and unsubscribe manually, even `protocol`
has been changed.
This also includes below changes:
* Add `overflow: hidden` to prevent float leaking
* Add missing fields for ActivityPub
* Add protocol field
* Switch protocol specific information according to active protocol
* Hide PuSH subscription related buttons if ActivityPub is active
* Add render_views in more places
* Delegate methods from account to user with allow nil true, so that admin accounts show view renders when missing a user
* Use actual account instances in authorize follow controller spec
* Shows confirmed status in list.
* Adds ability to confirm users in admin UI.
* Added new english translations.
* Addresses feedback from #2245.
* More feedback.
* Add a ReportFilter class
* Add reports and targeted_reports relationships to Account
* Use ReportFilter from admin/reports controller
* Link to admin/reports filtered views from admin account show view
* Add indexes to reports.account_id and reports.target_account_id
* Remove unused account_params method in admin/accounts controller
* Introduce AccountFilter to find accounts
* Use AccountFilter in admin/accounts controller
* Use more restful routes admin silence and suspension area
* Add admin/silences and admin/suspensions controllers
