[Feature]: Improve .dockerignore to ignore previously created videos

[pippinmole]

Summary

If you have videos in your results folder, they'll be copied into the image

Is your feature request related to a problem?

Docker images can become massive because they contain previously created videos

Describe the solution you'd like

Add a .dockerignore which ignores the results folder

Describe alternatives you've considered

No response

Additional Context

No response