Dev-X and contributions: Prettier and eslint configurations

[Mochitto]

Hey there,

Adding a linter and formatter configuration to the project would make it easier to contribute to it and ensure consistent styling for contributors.
I had an hard(-er) time keeping the format of the modules consistent while contributing to the project due to my default configurations being different from the maintainers'.

I'd be happy to add them to the project myself, along their relative scripts in package.json.

[Mochitto]

Noticed eslint is already included; issue remains open for the formatters part :)