DO11: Zoom in/out and horizontal scrollbar

When we zoom in/out lister, zoom don't refresh horizontal scrollbar.
We need to resize tree or Lister to display/hide scrollbar.

It refreshes OK here. (Opus 11 Beta 3, Windows 7, and Details mode.)

Look at this...



And notice this little glitch in Win7.


Thanks! I've reproduced it now. It was difficult to notice with the columns and settings I had, but turning on full-row selection (and also a right-aligned column like Modified) makes it obvious what's going wrong.

We'll get that fixed.

This has been fixed for the next beta.