i18n: include jinja file encoding in babel.ini

Author: Samk13

babel.ini

@@ -2,6 +2,7 @@
 #
 # This file is part of Invenio.
 # Copyright (C) 2016-2021 CERN.
+# Copyright (C) 2024 KTH Royal Institute of Technology.
 #
 # Invenio is free software; you can redistribute it and/or modify it
 # under the terms of the MIT License; see LICENSE file for more details.
@@ -16,6 +17,9 @@ encoding = utf-8
 [jinja2: **/templates/**.html]
 encoding = utf-8
 
+[jinja2: **/templates/**.jinja]
+encoding = utf-8
+
 # Extraction from JavaScript files
 
 [javascript: **.js]