Potential fix for code scanning alert no. 1: Clear text storage of sensitive information

[danias]

Potential fix for https://github.com/bitloops/ddd-hexagonal-cqrs-es-eda/security/code-scanning/1

To address the issue, the sensitive data (JWT token) should be encrypted before being stored in local storage. This can be achieved using a cryptographic library such as Node.js's crypto module or a similar browser-compatible library. The encryption key should be securely managed and not hardcoded in the codebase.

Steps to fix:

1. Introduce an encryption function to encrypt sensitive data before storing it in local storage.
2. Modify the setLocalStorageObject method to encrypt the data before calling JSON.stringify.
3. Modify the getLocalStorageObject method to decrypt the data after parsing it from JSON.
4. Ensure that the encryption key is securely managed and not exposed in the codebase.

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