fix(client): move math fixing to xsweet

This updates the docker-compose to use cokoapps/xsweet:2.2.1. This fixes both an out-of-memory issue and it moves a lot of math-fixing to the XSweet microservice, requiring much less fixing after upload.

There is still a bit of weirdness with the math coming back from XSweet, and I'll make another MR to get that fixed there so we can remove the patch code in this, but this will let us release this now.