Send correct value to pluralise filter from duration
Send correct value to pluralise filter from duration

The value being returned by the moment `hours()` method wasn't what
was expected.

It should be using the `.asHours()` method to return the number of
hours from that value.

uktrade/data-hub-fe-beta2,uktrade/data-hub-frontend,uktrade/data-hub-fe-beta2,uktrade/data-hub-frontend,uktrade/data-hub-frontend