in your cattle and crops folder there are several zip files and these conatin "strings.txt" which contains languages. It is now possible with mods to translate these stringt to whatever language you want. In disco the french people are starting a project to translate it to french as far as I know.
So probably in a few weeks people will start translating the game into different languages and correct "mistakes".
is this still an issue in 0.4.x? They translated something in new version but I am not sure if they translated or checked everything. So if not perhaps you can give examples where english language contains german words / parts.