QWinJumpList: use QDir::fromNativeSeparators() for file paths
QWinJumpList: use QDir::fromNativeSeparators() for file paths

Change-Id: Id5856a73611b40db3affbc9582e8b9461c492bea
Reviewed-by: Ivan Vizir <c1243858861556734ae9480955428cde5b7408bd@yandex.com>
Reviewed-by: Friedemann Kleint <1b9f2592239daaec4856ccc1cfb4d2d55b35fb71@digia.com>

kobolabs/qtwinextras,kobolabs/qtwinextras