Added option email/no_username to disable username input on form, and
instead use the provided email address as the username. Also added
missing 'packaging' dep from pevious update.
setup.py has been removed, and Poetry is now used to package for
install. This fixed an issue i had with uploading to PyPI, so one can
now run 'pip install jellyfin-accounts' to install.
user_template and other files are now accessed via JSONStorage, which
has dictionary like attributes for each file which can be used like a
dictionary, without the need to manually read and write the file. This
was done so that other storage types (e.g a database) can be added in
future.
Originally i loaded the requirements through calling the web api in
javascript, but decided to switch it to jinja as i only recently found
out its capable of stuff more complicated than replacing strings.
The admin page now has the option to send an invite to an email address.
Since there are now two email types (invites and pw resets), the new
sections have been added to config.ini, and email_template and
email_plaintext have been renamed to email_html and email_text
respectively.
