Implement JSON Import and Export Backup Functionality

[theolm]

Description

We need to enhance our application by adding the capability to import and export data using JSON files for backup purposes. This feature will provide users with a convenient way to safeguard their data and transfer it between instances of our application.

Key Features:

1. JSON Export:

   • Users should be able to export their data to a JSON file with a single click.
   • The exported JSON file should contain all relevant data, including invoices, settings, and user preferences.

2. JSON Import:

   • Users should be able to import data from a JSON file into their application.
   • The application should validate the JSON file to ensure it's in the correct format and prevent data loss due to incompatible structures.

3. Error Handling:

   • Implement robust error handling to address issues such as corrupted or improperly formatted JSON files.

4. User-Friendly Interface:

   • Design an intuitive and user-friendly interface for importing and exporting data.

This feature will not only enhance the user experience but also improve data management and security. It's an essential addition to our application, and we look forward to implementing it successfully.

Acceptance Criteria

• Users can export data to a JSON file.
• Users can import data from a JSON file.
• The imported data is correctly validated and integrated into the application.
• Error handling is in place to handle unexpected issues gracefully.

Additional Notes

• Ensure backward compatibility with previous versions of the application, so that existing users can seamlessly transition to this new feature.
• Consider potential security implications and ensure that data remains confidential during import and export processes.