I can't take care of translations at the moment, but want to tell you that in yad, it looks very nice. I still have a problem with your update notifier, is the way the setting works. But I'll be back on this later too, not today or tomorrow, but as soon as possible within the next few days. I think there is something really impossible to understand about the setting and how to use it. Maybe you could improve it so that it would be easy to set it up by days, weeks or months... and also manage to not have it pop up at each new session as it used to preceedingly when you set it up to pop up.
There are several settings that I don't understand in fact.