Bugfix for gnomon issue number 254: the main window size can not be decreased vertically.
The call to dtkWidgetsMenuBar::setFixedHeight() is done by dtkWidgetsMainWindow::resizeEvent().
It is thus not a fixed height we should set, but a normal not-fixed height / size.
Fixes gnomon issue 254
Tested working against gnomon and against example dtkWidgetsMenu.
2 questions for the reviewer :
- Should we rename dtkWidgetsMenuBar::setFixedHeight() to setHeight() because the name is now not correct? Would this rename cause many incompatibilities because other classes and other research software need to be updated?
- Should we apply the patch "change setFixedHeight() call to resize() call" only to the QFrame parent class, not to the d->c dtkWidgetsMenuBarContainer member because it is not required to fix the issue?