The crash handler was overriding DrKonqi so we were not getting
DrKonqi when KMail (or any other app using QtWebEngine) crashed.
@mlaurent where do you think is the best place to put this? Should
I add a method to pimcommon and add a call to it to each PIM app
that uses QtWebEngine? Or is it better to just assume everyone
is using PimUniqueApplication and leave it here?