Dlc 17 - Listings UI [IN-PROGRESS]

@Saityi make a pull request next time and tag me. Don't be shy :)
oh i agree with the status code.
:back may be 'standard' but I think its a poor pattern because it can be unpredictable.
so @admin is null because that's not how we store the currently signed in admin. if you look in https://github.com/sourlows/dlc_web/blob/dlc_17/app/helpers/sessions_helper.rb we use current_admin to define the admin, so you'd need something like ```redirect_to current_admin``` or maybe ```redirect_to current_admin.id``` (or find out how to reference current_admin)