16660 - Use ngettext for strings with count

[Julio-Oliveira-Encora]

Fixes: #16660

Added ngettext for strings with count, positions, and rows.

Please, feel free to indicate more places to add the ngettext.

[arthanson]

Closing this as this doesn't address the issue in BulkDisconnectView:

                messages.success(request, _(ngettext(
                    "Disconnected 1 {type}",
                    "Disconnected {count} {type_plural}",
                    count,
                )).format(
                    count=count,
                    type=self.queryset.model._meta.verbose_name,
                    type_plural=self.queryset.model._meta.verbose_name_plural
                ))

see frank's comment on the bug report. I don't think it is viable to create a line for each type, so this will have to be researched further.