[Minor] IDE error: locale 'en_GB' cannot be set

Hi everyone :slight_smile:
Not a big issue, just thought I would share the info.
The popup comes every time Gdevelop starts, even if I change languages.


NB this is the latest github version for linux 32 bit

Thatโ€™s not a bug, you just have to install the language that tells you in linux in this case installed on your linux en_GB and ready.