Blog post on why to use ESLint with TypeScript

[JoshuaKGoldberg]

@nzakas had mentioned a bit back that it would be useful to have an explainer for why it's beneficial to use ESLint with TypeScript, and suggested I write a blog post or two on it. Filing an issue now for tracking.

[nzakas]

Was just thinking about this, too. Thanks for keeping track. 👍