Fix/docker setup update

[hello-jkoubi]

Summary

Update Dockerfile and align image to 0.4.0, primarily updating Stretch Python packages to the latest versions.

Changes

• Update Stretch Python packages
• Refresh ROS apt key
• Remove broken RealSense apt source
• Remove baked HELLO_FLEET_ID
• Add user-site Python cleanup step
• Update stretch_ros2 and rebuild
• Push updated image to Docker Hub

This ensures the container uses the latest Stretch packages and avoid issues from stale Python environments or broken apt sources.

[hello-robot-shehab]

Hey @hello-jkoubi, are Dockerfile.ros2_patch and fix_python_user_site.sh a part of this PR? I don't see where they are being called. Thanks for confirming!

[hello-jkoubi]

@hello-robot-shehab I updated this PR by modifying Dockerfile.ros2_patch and integrating it into build-robot-docker.sh so the updated image can be built and pushed to Docker Hub.

I also added a docker-compose.yml that launches Terminator, allowing multiple terminal sessions within the container. This makes debugging easier and provides a more convenient way to interact with the container.