Updated bootstrap to version 5.0.0-alpha1 and removed dependency to jQuery.
Migrate form Flask-Script to the built-in integration of the click command line interface of Flask.
Added a way to manage Content Security Policy via the configuration file.
Merge branch 'master' of git.sr.ht:~cedric/newspipe
Python 3.8 is the minimum.
Preparing new 9.1.0 release.
Added flake8 in dev requirements.
Updated Python dependencies.
Removed sendgrid dependency.
Removed Flask-SSLify and Heroku default support.
The project is now using Poetry.