Added:
- Added / implemented a real working AI Status badge for the RAG Chat UI - to see if it is available and which model is loaded.

Changed:
- Updated the image URL for the AI Status badge.
- Changed the full changelog link from `v3.0.1...v3.0.3` to `v3.0.1...v3.0.3`.

Removed:
- Removed the filter tab on RAG Chat as this feature is highly unstable and has to be fixed in the future.