Refactor Nginx configuration and update project dependencies

- Cleaned up the Nginx configuration for the Coolify deployment, ensuring proper formatting and organization.
- Updated the `pyproject.toml` file to maintain consistent formatting.
- Reformatted the `requirements.txt` file for better readability while keeping the dependencies unchanged.

frontend/requirements.txt

@@ -1,7 +1,7 @@
-Flask
-gunicorn
-httpx
-itsdangerous
-Jinja2
-MarkupSafe
-Werkzeug
+Flask
+gunicorn
+httpx
+itsdangerous
+Jinja2
+MarkupSafe
+Werkzeug