Missing translation: import authorized/blocked senders error message

[guillaumedc]

Describe the bug

When trying to import malformed file to authorized senders or blocked senders, error message is not translated.

It miss Generics.flash.BadFormatcsv key in i18n files.

Expected behavior

Proper error message (translated)

Screenshots

[marien-probesys]

Another missing translation is present in app/templates/header.html.twig ("Autres boîtes mails")

[marien-probesys]

Concerning the Generics.flash.BadFormatcsv missing translation, it's because we must translate it manually with $translator->trans() in the controller before setting the "Flash". The problem happens at least here:

• app/src/Controller/ImportController.php lines 251 and 254
• app/src/Controller/WblistController.php lines 108 and 203