The previous behavior denies any attempt to focus such windows, which
is not in line with how they behave on Windows.

Rename the macdrv_window_state no_activate field to no_foreground
so it more accurately reflects its meaning.
Signed-off-by: Tim Clem <tclem@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>