Introduce `delete-elasticsearch` scripts for both Windows and Unix to stop, remove containers, and delete data volumes. Updated `Makefile` to include this command for easier management. Upgraded `django-elasticsearch-dsl` and related dependencies to their latest versions for compatibility.
Breaking change: Updated Elasticsearch image and configuration to enable xpack security. Ensure environment variables are properly set.
Ensure the `clear` target works on both Windows and Unix-based systems by checking the OS and terminal settings. This update avoids errors when running in unsupported environments.
Introduce `EmailImage`, `EmailTemplate`, and `EmailCampaign` models for enhanced email management, including campaign tracking and one-click unsubscribe tokens. Added multilingual fields for email templates and improved accessibility with image alt text. Also adapted `Post` content fields to support translations.
