Update Dockerfile

Dockerfile

@@ -54,7 +54,7 @@ RUN ./dist/proot -S ./rootfs /bin/bash -c "\
     echo '-: Package and Sudo setup complete. :-'"
 
 # Expose port 8000 (if needed for your application)
-EXPOSE 8000
+EXPOSE 7860
 
 # Set the entrypoint to open a normal terminal for the web UI
-CMD ["gritty", "--port", "8000", "--command", "bash", "--auto-restart"]
+CMD ["gritty", "--port", "7860", "--command", "bash", "--auto-restart"]