Pre-release v0.4.0

This is the almost complete v1.0.0, but currently releasing it as v0.4.0 for testing and bug fixes.

Changelog

• Added a prompt to enable automated backups.
• Restructured the rollback command.
• Fixed a bug where the wrong backups were being deleted in Rollback screen.
• Fixed a bug where the wrong backups were being deleted in Rollback command.
• Fixed a bug where backups would use the same icon.
• Fixed a failure with /rollback delete latest
• Made use of already existing translations in Minecraft source