[Feature]: Add --debug flag to the CLI dev command

[bensenescu]

What area(s) will this request affect?

Running your code locally

What type of change do you want to see?

New feature

Overview

Is it possible to support a --debug flag to shopify app dev for integration with IDEs?

https://remix.run/docs/en/main/other-api/dev#remix-dev---debug

This was introduced in hyrdrogen and seemed like a quick fix.

Shopify/hydrogen#866
https://github.com/Shopify/hydrogen/pull/869/files

Motivation

Improve local development by making it easier for developers to run debuggers for their remix apps building on shopify.

[gonzaloriestra]

Hi! In case it helps, you can easily debug from VSCode by opening Debug: Debug npm script from the command palette and then choosing dev.

Do you work with any other IDE?