mnemosyne was installed from the Education repository. It used to work fine but now failed to start since the OS was rolled to the latest snapshot.

Environment:
* openSUSE Tumbleweed snapshot version 20240426
* mnemosyne version 2.11 from the Education repository (mnemosyne-2.11-3.6.noarch)

Reproduce Steps:

Start mnemosyne from the commandline:

# mnemosyne
/usr/lib/python3.11/site-packages/mnemosyne/libmnemosyne/__init__.py:377: UserWarning: google_trans_new package is not installed. Google translate feature will not be available.
  warnings.warn("google_trans_new package is not installed. Google translate feature will not be available.")
QGuiApplication::setDesktopFileName: the specified desktop file name ends with .desktop. For compatibility reasons, the .desktop suffix will be removed. Please specify a desktop file name without .desktop suffix
Path override failed for key base::DIR_APP_DICTIONARIES and path '/usr/bin/qtwebengine_dictionaries'
Path override failed for key base::DIR_APP_DICTIONARIES and path '/usr/libexec/qt6/qtwebengine_dictionaries'
Path override failed for key base::DIR_APP_DICTIONARIES and path '/usr/libexec/qt6/qtwebengine_dictionaries'


The application won't start. Ctrl-C to stop it, then got following debug information:

An unexpected error has occurred.
Please forward the following info to the developers:

Traceback (innermost last):
  File "/usr/lib/python3.11/site-packages/mnemosyne/pyqt_ui/review_wdgt.py", line 449, in restore_focus
    def restore_focus(self):


Since it worked fine in March before some OS upgradings (rollings), it may has something to do with the dependencies (maybe some Qt6 libraries).