Provide AppImage for latest release

[JosephKiranBabu]

The latest available AppImage still has a problem logging in. Please publish an AppImage for v2.2.6

[jeena]

Hm that's a good point, I kind of forgot about that, will check how to do that, because the automatically generated one is already gone.

[jeena]

Hm, I got it working so it would generate and automatically publish it here but when I test it I get an error:

module "QtWebEngine" version 1.7 is not installed

Not sure why that is, I think I need to talk to the guys who provide this scripts to create the AppImage files.

[jeena]

@probonopd any idea why I'm getting this error, I kind of assumed that this module would have been part of the AppImage.

[probonopd]

I kind of assumed that this module would have been part of the AppImage.

Is it? You can check using ./Your.AppImage --appimage-extract.