fix(backend): 🐛 email invite in receivers language

src/backend/core/api/serializers.py

@@ -18,7 +18,7 @@ class UserSerializer(serializers.ModelSerializer):
 
     class Meta:
         model = models.User
-        fields = ["id", "email", "full_name", "short_name"]
+        fields = ["id", "email", "full_name", "short_name", "language"]
         read_only_fields = ["id", "email", "full_name", "short_name"]
 
 

src/backend/core/api/viewsets.py

@@ -652,10 +652,9 @@ class DocumentAccessViewSet(
     def perform_create(self, serializer):
         """Add a new access to the document and send an email to the new added user."""
         access = serializer.save()
-        language = self.request.headers.get("Content-Language", "en-us")
 
         access.document.email_invitation(
-            language,
+            access.user.language,
             access.user.email,
             access.role,
             self.request.user,
@@ -867,7 +866,7 @@ def perform_create(self, serializer):
         """Save invitation to a document then send an email to the invited user."""
         invitation = serializer.save()
 
-        language = self.request.headers.get("Content-Language", "en-us")
+        language = settings.LANGUAGE_CODE
 
         invitation.document.email_invitation(
             language, invitation.email, invitation.role, self.request.user