Reduced the amount of copying and pasting when adding new users and shows.
To add a new user:
create new user_list to User list
add shows
create new user_name
add user email to Email list recall User list name
add new user_name to user_all list
This is based on the work from JonnyWong16/notify_on_show.py and mp998/PlexPy_email_notifiation.py. This is used to send an email notification when a specific show is added to Plex. Create a list of users with their email address and show preferences.