Different issue - I was just going to file a bug but spotted that it says to mail to the list first.
There is a width issue in the settings menu, the titles of the icons are truncated in our locale (gd) and there are also some truncations in the main settings window body (though that can be manually resized). Would it be possible to use dynamic window sizing like LibreOffice does? I would hazard a guess that right now, Gaelic isn't the only locale with truncation issues so solving this in general so it's not necessary to set widths for each locale might be a good idea.
In most cases, shortening is not really an option - Tèarainteachd (Security) just is that long, I can't change the language