Bug 11248: fix encoding issue on emailing a list (OPAC)

Bug 11248: fix encoding issue on emailing a list (OPAC)

Test plan:
- send a list via email with the english version.
- translate templates and retry with another language.

Signed-off-by: Katrin Fischer <Katrin.Fischer.83@web.de>
Works nicely. Links to the OPAC are correct.

Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>
Signed-off-by: Galen Charlton <gmc@esilibrary.com>
(cherry picked from commit 394ece2e1012aebdc5543f739c5438f91c66d477)
Signed-off-by: Fridolin Somers <fridolin.somers@biblibre.com>
Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>
(cherry picked from commit 51d7f2da3a59a06bd0089cad5f34077c1811ca8a)