provide setting to disable the codeActionsOnSave

[tjx666]

[OliverJAsh]

@lgrammel Do you know what the code action on save does?

[lgrammel]

@OliverJAsh I think it is a vscode setting that e.g. runs all ESLint fixes automatically when you save a file.

It might automatically get picked up by VS Code when extension implement code actions (and scan the code), I don't remember implementing anything specific.