Add more debug info for failed logins

[JonBunator]

Is your feature request related to a problem?

It is difficult to say what the problem is when a login doesn't work

Describe the solution you'd like

Display additional info, when a login failed:

• Xpaths
• Intermediate screenshots
• Detailed error messages

Code of Conduct

• I agree to follow this project's Code of Conduct

[JonBunator]

Videos could be recorded via:

ffmpeg -video_size 1920x1080 -framerate 25 -f x11grab -i :99 -codec:v libx264 test_output.mp4