Scrolling issues with back navigation from Statistics Info screen to...

Scrolling issues with back navigation from Statistics Info screen to Homescreen (EXPOSUREAPP-4771) #2264

* remove state fetching when submission is done

* keep instance

* test

* rollback

* rollback

* rollback

* rollback

* save state

* clean up

* refactor refreshUiState to not issue unnecessary states

* remove references after usage

* move to home adapter

* remove reference to holder

* adds tests to make sure ui states are still correct

* rename

* Add an adapter module that handles a voluntary ViewHolder state saving mechanism.

* Merge branch 'fix/4771-home-flickering-polish' into fix/4771-home-flickering

# Conflicts:
#	Corona-Warn-App/src/main/java/de/rki/coronawarnapp/statistics/ui/homecards/StatisticsHomeCard.kt
#	Corona-Warn-App/src/main/java/de/rki/coronawarnapp/ui/main/home/HomeAdapter.kt

* revert

Co-authored-by: Matthias Urhahn <matthias.urhahn@sap.com>
Co-authored-by: Ralf Gehrer <ralfgehrer@users.noreply.github.com>