Repaint filename and file icon status on view change only in tabless mode.
Reasons:
- tabbar doesn't need this, it does repainting itself
- this triggered a full tabbar repaint which is not desirable:
tab positions changed randomly after moving to next/prev view
one such buggy case was:
a) open N tabs (more than fits the screen)
b) switch to the last tab
c) switch to the previous tab => last tab hides, the whole tab row "moves" right

This is an improvement over rev. 157b6e07