fix sort-by dropdown, normalise whitespace, fix warning
fix sort-by dropdown, normalise whitespace, fix warning

$template_data_ref->{sort_options} was nested one level too many

openfoodfacts/openfoodfacts-server,openfoodfacts/openfoodfacts-server,openfoodfacts/openfoodfacts-server,openfoodfacts/openfoodfacts-server,openfoodfacts/openfoodfacts-server