keyboard layout list improvements

[Sundeep Anand]

Hi,

Kindly refer:
  - https://bugzilla.redhat.com/show_bug.cgi?id=1039185
  - https://bugzilla.redhat.com/show_bug.cgi?id=1158370

I'm looking around this a bit and added my observations to
https://bugzilla.redhat.com/show_bug.cgi?id=1039185#c43.

This is a request to kick off discussions towards a sustainable approach
making this!

warm regards,
sundeep