Focus chain and readonly field
In changeset e0ce5c923bf5, we changed the focus chain to skip the readonly fields. But this behaviour is not right for accessibility support because such readonly fields are no more reachable via keyboard.
So we should put back the readonly field in the focus chain but should we do it always or only for accessibility (when 'gail:atk-bridge' module is loaded or via environment variable or via an option)?
In some way, it is not so bad to have them also accessible via keyboard for standard user as it will allow to copy/paste the content.