Does this work for you: https://mega.nz/file/y2ZUjSzC#gzcgmdI1yWhSt4zLXjiKeMTMHty871JQi5oNi1-hPEk
You're not the first person to want some way of translating the text. I'd be interested to know if this functionality helps at all. (The right click menu.) I never managed to get much feedback on it when I implemented it.
I see, I see. What you're saying does make sense. Yeah, copy new text also copies in the new menu text. I will make it so this doesn't happen anymore, but unfortunately please don't expect this to happen soon, there's a whole lot of stuff we need to get done and there's only so much time in a day. I'll also see about the filtering in case I can improve it. (You can remove the text from the very bottom, the one that starts with "API tokens" by turning off Developer Mode in the menu.
If you open the file layout\js\copy.js using Notepad and change it for the code I linked, it should work a little bit better: https://pastebin.com/emytF8Di