Remove jQ from updateCounter
Remove jQ from updateCounter

This now takes the `showingCount` as an argument. This is because showing count was introduced in filterListItems as an easier mechanism for tracking the number of visible changes. The difference in this method is minimal though

Co-authored-by: Graham Lewis <1962cafca023439d49812617b1a591521de8dc58@digital.cabinet-office.gov.uk>

alphagov/frontend,alphagov/frontend,alphagov/frontend,alphagov/frontend