Migrate - ROM backup 5.0.1

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From 2.1 to 3.0
#. The app is rewritten in Kotlin
#. Many new preferences have been added.
#. Helper app is now available on Google Play.
#. Many fixes in recovery. Support for SAR and Android 10.
#. Added options for backup of app installer, font scale, adb state
#. Set max zip size in preferences.
#. Verification of zips after backup is complete.
#. Many more changes and improvements…

From 3.0 alpha to 3.0 release
#. Wifi backup is disabled until it becomes stable.