v2.3.1

Note for Android

Update already installed PKVault app requires to uninstall/install.
This issue is fixed from v2.4.2.

What's Changed

• fix: gen 3 contest ribbons not previewed nor synced by @lorenzopincinato in #244
• Fix: restore backup and data-migration by @Chnapy in #258

Full Changelog: v2.3.0...v2.3.1