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.

app/controllers/admin/confirmations_controller.rb

@@ -0,0 +1,18 @@
+# frozen_string_literal: true
+
+module Admin
+  class ConfirmationsController < BaseController
+    before_action :set_account
+
+    def create
+      @account.user.confirm
+      redirect_to admin_accounts_path
+    end
+
+    private
+
+    def set_account
+      @account = Account.find(params[:account_id])
+    end
+  end
+end