Install rich, try to suppress more pylance warnings

[pamelafox]

Purpose

This pull request makes a minor configuration change to the .devcontainer/devcontainer.json file to adjust Python analysis settings.

• Disabled type checking in Python analysis by setting "python.analysis.typeCheckingMode": "off" in the devcontainer settings.

Does this introduce a breaking change?

[ ] Yes
[X] No

Pull Request Type

What kind of change does this Pull Request introduce?

[ ] Bugfix
[ ] Feature
[X] Code style update (formatting, local variables)
[ ] Refactoring (no functional changes, no api changes)
[ ] Documentation content changes
[ ] Other... Please describe: