Bug 11648 - Use word item instead of copy - opac prog

Bug 11648 - Use word item instead of copy - opac prog

Sometimes, the word copy/copies is use to speak about item/items.
It would be better to use only item because translation of the word
copy depends on context, it should be used only when speaking about
copy like in "copy and paste".

This patch replaces copy/copies in  opac prog theme.

Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>
Signed-off-by: Katrin Fischer <Katrin.Fischer.83@web.de>
Signed-off-by: Galen Charlton <gmc@esilibrary.com>
(cherry picked from commit 635d5441112171170bd3f2de7fdbf9a9feb62f48)
Signed-off-by: Fridolin Somers <fridolin.somers@biblibre.com>