Enhancement request: Implement Content Security Policy leveraging Django 6.0 support

[tdruez]

https://docs.djangoproject.com/en/6.0/releases/6.0/#content-security-policy-support

[vishalpatil-45]

I am working on this enhancement using the native Django 6.0 CSP tools. I plan to implement ContentSecurityPolicyMiddleware and configure the initial policy in SECURE_CSP_REPORT_ONLY mode to identify all required resource domains without breaking existing functionality

[tdruez]

Let's postpone this for now, we should wait for Grappelli to officially support Django 6