Qt Creator not visible in "Open With" menu on Linux

Qt creator is not visible in "Open With" menu in Gnome 3 desktop.

This is because the Exec line in DigiaQt-qtcreator-enterprise.desktop is missing the input file argument "%F" at the end.

Adding the input file argument manually allows Qt creator to be set as default app for .pro files.

Also, it seems that the .desktop files for both Creator and MaintenanceTool are installed using execute permissions, which is not necessary since the files are not really executable.