26.2 port, actually

So the jar actually only contained the code for the mod loader client, and not the common code. Oops.

Thanks to some help in the Architectury discord, I found that I needed to upgrade to another “shadow” gradle plugin (on another ID) and also apply some changes. Now everything is correct.

Since I messed up, I made a new release (1.0.3), and it also gave me the chance to update the repository information since I changed my GitHub name from ItzSwirlz to JPeisach (I think I’d prefer “jpeisach” but I don’t know if I can be that specific - regardless, the url is case insensitive).