[fix] redirect when saving preferences
[fix] redirect when saving preferences

Erroneously commit 87e4c4762 droped the 302 redirect.

Signed-off-by: Markus Heiser <14dfd67dd72e7ac80c040b62bb932f1e121795cc@darmarit.de>

dalf/searx,dalf/searx,dalf/searx,dalf/searx