Refactor devcontainer 📦

[sduquemesa]

Context:
Doing some housekeeping here on the devcontainer side.

Description of the Change:

• The previous build script was a bit cumbersome, here it has been simplified.
• Julia installation is now manually managed with juliacall, meaning there is no need for passing the optional JULIA_INSTALL arg to docker build.
• Only a single Dockerfile to create the container. This Dockerfile can also be used to create a completely isolated environment using docker (useful for testing, running simulations, etc.).
• Ensures changes on the code are reflected on the interpreter as they happen. To do so the workspace folder points to /mrmustard where the source code resides.
• Installs the jupyter extension automatically.
• LOCAL DEV CONTAINERS ONLY: Users can now have the MRMUSTARD_PYTHON_VERSION env-var set in their local environment to dictate which python version the dev container will be built with. When unset, the default value is 3.10. I'd suggest doing this in your bashrc/zshrc/whatever-rc to ensure it's always set and therefore picked up by VS Code

Benefits:

• Click and go 🚀
• Seamless julia installation
• (local-only) customizable python version

Possible Drawbacks:
None. I tried getting the MRMUSTARD_PYTHON_VERSION supported in GitHub Codespaces, but it doesn't seem to take any custom build args 😢

[sduquemesa]

@ziofil, I've readded oh-my-zsh to the container as default terminal

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 87.62%. Comparing base (a638bfb) to head (6460987).

Additional details and impacted files

@@           Coverage Diff            @@
##           develop     #329   +/-   ##
========================================
  Coverage    87.62%   87.62%           
========================================
  Files           81       81           
  Lines         6158     6158           
========================================
  Hits          5396     5396           
  Misses         762      762           

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[ziofil]

👍