Allow changing default `.wikitext` file extension to something else

[Openstreetmapler]

I always find it quite annoying when I create a new wikitext file and then, when I save it, I always have to edit the file extension to be .wiki instead of .wikitext – there’s no setting to permanently set the file extension!

[Frederisk]

I looked through the VSCode API documentation, but didn't find any settings or configurations for it. So it seems that this is not feasible, and VSCode will always get the first one in extensions as the default file extension.

[Openstreetmapler]

Should I open an issue about this in the VSCode repository?

[Frederisk]

Maybe? I looked around in the VSCode issues page but couldn't seem to find an existing issue for this, not sure if I'm missing something.