Bug 10605: fix encoding issue on basket email (INTRANET)

Bug 10605: fix encoding issue on basket email (INTRANET)

Same fix for the staff interface.

Signed-off-by: Katrin Fischer <Katrin.Fischer.83@web.de>
Both patches tested with English and German, diacritics
now appear correctly if UTF-8 is selected as encoding.
Passes all tests and QA script.

Signed-off-by: Brendan Gallagher <brendan@bywatersolutions.com>
Signed-off-by: Galen Charlton <gmc@esilibrary.com>
(cherry picked from commit 62fcbea10a0e7b3fbca74531ec5051704ab63f7c)
Signed-off-by: Fridolin SOMERS <fridolin.somers@biblibre.com>