Because the playlist is started before the interface is up,
the vout window provider waits until basic initalization is done
in the interface (initialization of VLCIntf, NSApp, static vars).

This is still sort of a hack, ideally the playlist should be
started only after all interfaces are fully initialized.

close #11585

(cherry picked from commit 4a17358abea2b8fce47e8af3888aec638debfb42)
Signed-off-by: David Fuhrmann <dfuhrmann@videolan.org>