Cron fix

I had to add the following to functions.php in order to process permalinks in Korean language:

add_filter( 'c3_invalidation_items', function( $items ) {
    return array_map( function( $path ) {
        $wildcard = '';
        if ( str_ends_with( $path, '*' ) ) {
            $wildcard = '*';
            $path     = rtrim( $path, '*' );
        }
        $segments = explode( '/', $path );
        $segments = array_map( function( $seg ) {
            return rawurlencode( rawurldecode( $seg ) );
        }, $segments );

        return implode( '/', $segments ) . $wildcard;
    }, $items );
} );