Alpha and RT builds compile in German language by default

[MrMario2023]

When I compile builds from the alpha and tester_rt64alpha branches, the language is always set to German and I can find no way to alter this fact. This is odd as I am using a US rom for the builds.

I am compiling the builds manually on PopOS.

I find I can alleviate this issue by copying the English language json files and replacing the German ones with them, although this process would need to be repeated for every compilation I do.