There are three files directly in ui/ relating to focus: FocusModifier.kt, FocusObserverModifier.kt, FocusRequesterModifier.kt. They should be in the focus/ directory and package for consistency. Marking this P1 as it will be hard to do after beta.

An example of how to have deprecation declarations for a similar move is here: https://cs.android.com/androidx/platform/frameworks/support/+/androidx-master-dev:compose/ui/ui/src/commonMain/kotlin/androidx/compose/ui/DrawModifier.kt;l=26;drc=e429769720e41196e71dbcf09a6db503c2d6d8e3