feat: changed dockerfile to serve both ui and backend

Dockerfile

@@ -28,7 +28,7 @@ RUN chown -R appuser:appuser /app
 USER appuser
 
 # Command to run the application
-CMD ["sh", "-c", "exec gunicorn --bind :$PORT --workers 1 --threads 8 --timeout 0 main:app"]
+#CMD ["sh", "-c", "exec gunicorn --bind :$PORT --workers 1 --threads 8 --timeout 0 main:app"]
 
 # Stage 2: Frontend - Nginx
 FROM nginx:alpine AS frontend