I see there is a few words lost in some languages as Spanish. I am think in work in a tool to help to translate and I am writing here in case of I forget it.
My idea is to have a small initial form with a uploader to upload a JSON with the system words and some fields to give name to languages. The next windows basically make a table with x = system names and y = languages and the cell [X,Y] is a field text to write the word in the Y language.
On submit basically creates JSON files with the translation.
If somebody likes the idea, just take it.