Feature: Allow staff to change user emails (#7074)

* Admin: Show unconfirmed email address on account page

* Admin: Allow staff to change user email addresses

* ActionLog: On change_email, log current email address and new unconfirmed email address

config/routes.rb

@@ -151,6 +151,7 @@ Rails.application.routes.draw do
         post :memorialize
       end
 
+      resource :change_email, only: [:show, :update]
       resource :reset, only: [:create]
       resource :silence, only: [:create, :destroy]
       resource :suspension, only: [:create, :destroy]