Bug 33809: (follow-up) Grammar correction

Bug 33809: (follow-up) Grammar correction

This is somewhat nitpicky but I think "Show fewer..." is more correct
than "Show less..." for strings like "Show fewer authors."

'Generally, fewer is used when the number of things is counted ("fewer
problems") whereas less is used when the number is measured ("less
trouble" or "less time").'
-- https://www.merriam-webster.com/words-at-play/fewer-vs-less

It's not a strict rule but to my ear it sounds more correct. The brief
"Show less" displayed on screen seems fine because the object feels
indeterminate: "Show less information."

Signed-off-by: Lucas Gass <lucas@bywatersolutions.com>
Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>