Admin UI for confirming users (#2245)

* Shows confirmed status in list.

* Adds ability to confirm users in admin UI.

* Added new english translations.

* Addresses feedback from #2245.

* More feedback.

config/locales/en.yml

@@ -43,6 +43,8 @@ en:
   admin:
     accounts:
       are_you_sure: Are you sure?
+      confirm: Confirm
+      confirmed: Confirmed
       display_name: Display name
       domain: Domain
       edit: Edit

config/routes.rb

@@ -86,6 +86,7 @@ Rails.application.routes.draw do
       resource :reset, only: [:create]
       resource :silence, only: [:create, :destroy]
       resource :suspension, only: [:create, :destroy]
+      resource :confirmation, only: [:create]
     end
   end