printers: add filter controls for new filter method
use the new onFilterPrinters
to implement a filter function on the printer list
the filters should be on top (or left but I like top more) of the list, like in many webshop systems
use the new onFilterPrinters
to implement a filter function on the printer list
the filters should be on top (or left but I like top more) of the list, like in many webshop systems