Cannot create new library in default location on some Android devices
On some Android devices, creating a library in the default location fails.
This could be due to wrong detection of a suitable location of permanent user files. In particular, the current implementation reads the "SD Card location" from an environment variable. Chances are, that this is no longer valid or at least not compatible across all devices. As the default location is not meant to be visible to other apps, it would be better to just use Qt's built in functionality to retrieve a good location.