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

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

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 bootstrap 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 18456ea5fc605d0c6dc58a860fe963bfbd3ba972)
Signed-off-by: Fridolin Somers <fridolin.somers@biblibre.com>