- Update devauth
- Fix remapJar not being included when configuring all tasks with type Jar
- Rename intermediate artifacts and folder to better show what they are

This will automatically find mixins in the mixin plugin, not requiring
the manual configuration. This is less friction, especially for newer
users. Usually this isn't super advisable, or needs more configuration
to avoid server/client mixins being incorrectly applied, but with the
target demographic of mostly client mods, I think this is a worthwhile
change.