Merge branch 'hotfix-17.23.1'
Merge branch 'release-18'
Revert "name change"

This reverts commit e65e1031a97a8a20bee8b08753970d67e9d29de3.

Using night_mode would lead to strange behaviour as the style would be inverted (again) on AnkiDroid.
Clean-up suggested by flake8 and pylint.
Bump versions
Merge branch 'release-19'
Merge remote-tracking branch 'ospalh/master'
Merge branch 'release-18.0.1'
Merge remote-tracking branch 'ospalh'
Merge branch 'release-19.0.0'
Mute button.
Always show the mute menu item.
Merge branch 'feature-mute' into develop
Always show the last card menu item, too.
Add class browserhide to not show the image in the browser.
This needs the lean browser qa add-on as well.
Do connect the button even when we have a hotkey.
What tf was that else doing there in the first place‽
Merge branch 'hotfix-19.0.1' into develop