Backups don't save the categories and progress

[VektorOO7]

Steps to reproduce

1. Make a backup.
2. Download the app on another device.
3. Load the backup.

Expected behavior

The novels should be loaded, sorted in the same categories and with the same progress as in the original device.

Actual behavior

All the novels are in the Default category, the categories don't exist anymore and the progress on all novels is reset to zero.

LNReader version

1.1.19

Android version

Android 11

Device

Mi 8

Other details

No response

Acknowledgements

• I have searched the existing issues and this is a new ticket, NOT a duplicate or related to another open or closed issue.
• I have written a short but informative title.
• If this is an issue with a source, I should be opening an issue in the sources repository.
• I have updated the app to version 2.0.0.
• I will fill out all of the requested information in this form.