[PrivacyBadger] Privacy Badger version 2019.9.23 released

[Alexei]

Privacy Badger 2019.9.23 has been released for all supported browsers.
As always, you can get it from https://www.eff.org/privacybadger
or from your browser's add-on gallery.

Notable updates:

* Added helpful text to popup on special browser pages like the New Tab page
* Fixed pixel cookie sharing detection being broken by First-Party
Isolation in Firefox
* Fixed major issues with Service Workers-powered sites like Gmail and
Twitter
* Fixed various other site breakages
* Improved translations (Simplified Chinese, French, Spanish, Swedish,
Turkish, Ukrainian)

For further details, consult our release notes on GitHub:
https://github.com/EFForg/privacybadger/releases/tag/release-2019.9.23