This is here to facilitate our discussion about potentially adopting auto-formatting for our codebase. This change uses `prettier` to format the `common` directory in our JavaScript code, with the following settings: ``` "prettier": { "quoteProps": "consistent", "singleQuote": true, "tabWidth": 4 } ``` I admit that there are decisions that `prettier` makes that bother me a bit more than the ones in `black` for Python code. That said, I don't see anything that I'd consider a deal-breaker, and I still think it may be an overall productivity win.