Merge changes from topic "pia-j2k" into main

* changes:
  Migrate AsyncTask to Coroutines
  Merge all uninstall stages in a single file
  Merge all install stages in a single file
  Convert code in UninstallRepository from Java to Kotlin
  Rename .java to .kt
  Convert code in InstallRepository and related classes from Java to Kotlin (install repo)
  Rename .java to .kt
  Convert code in PackageUtil from Java to Kotlin
  Rename .java to .kt
  Convert code in files from Java to Kotlin (view)
  Rename .java to .kt (view files)
  Convert code in files from Java to Kotlin (viewmodel)
  Rename .java to .kt (viewmodel files)
  Convert all uninstallstagedata/ classes from Java to Kotlin
  Rename .java to .kt
  Convert all installstagedata/ classes from Java to Kotlin
  Rename .java to .kt