pre-release 0.0.0

It's stable, but note that large changes may happen before 1.0
I also consider the state of 1.0 should be at least supporting migration from NHViewer 3 (Android), that's why it is now 0.0.0

Known issue:

• Comic language setting is not persistent
• Missing a direct way to migrate from NHViewer 3 (Android), currently this app can do so by loading the backup file (json) from NHV-Backup though network.

Full Changelog: https://github.com/ttdyce/nhviewer-universal/commits/0.0.0