Transfer WhatsApp by copying the internal app files

ToAs createof 2025, the backup:default method of WhatsApp to https://faq.whatsapp.com/481135090640375/?cms_platform=androidBackup and Restore requires a Google Account and Chat data transfer using local Wifi requires Android-Features that are not available on Sailfish OS.

TODO: Describe the procedure

The backups are stored in android_storage/Whatsapp

To restore the backup: https://faq.whatsapp.com/618575946635920/?locale=en_US&cms_platform=android