privacy: Enable USB protection in "lockscreen" mode by default
privacy: Enable USB protection in "lockscreen" mode by default

With this change, g-s-d will spawn the USB component which controls USBGuard.
If the USBGuard is not present or its version is not compatible, it shuts down and should not affect the user's session.

GNOME/gsettings-desktop-schemas,GNOME/gsettings-desktop-schemas