refactor: Move modules that are built for Kotlin Multiplatform into separate projects

[0ffz]

Currently some modules used in Geary like DI are written for Kotlin/Multiplatform. We should be adding as many build targets as possible to make these more useful to other projects, but they're starting to add significant build time to Idofront.

I'm hoping to solve this by moving them out to their own projects and depending on the JVM target in Idofront.