Bug 24358: (bug 21232) Make the alert string translatable

Bug 24358: (bug 21232) Make the alert string translatable

"Bibliographic record does not exist!" was not translatable as it was
defined in the .js file

Test plan:
Repeat test plan from bug 21232

Bonus point: update and install a localized version and confirm that the
message is translatable

Signed-off-by: Lucas Gass <lucas@bywatersolutions.com>
Signed-off-by: Marcel de Rooy <m.de.rooy@rijksmuseum.nl>
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>
Signed-off-by: Joy Nelson <joy@bywatersolutions.com>
(cherry picked from commit c86882f2aefe3bf2e567dbf59f5ca2d396351cf4)

Signed-off-by: Lucas Gass <lucas@bywatersolutions.com>