Implement a spellchecker in justfile

[lwjohnst86]

Would be nice to have a spellcheck linter of some type as a recipe in the justfile. And maybe an automatic one in VSCode? (already implemented with cSpell)

[K-Beicher]

@lwjohnst86 how does this differ from the spell check that we have running in VS Code already?

[lwjohnst86]

@K-Beicher that is something built-in/an extension in VS Code, which means we can integrate it into our build system, e.g. in the justfile or as a GitHub workflow.

[K-Beicher]

I'll put it back in the list in that case, not sure I know enough about linting.