
## What is this PR for? Support [`astro.config.ts`](https://docs.astro.build/en/guides/configuring-astro/#supported-config-file-types) as a root file for the Astro extra. ## Does this PR fix an existing issue? N/A ## Checklist - [x] I've read the [CONTRIBUTING](https://github.com/LazyVim/LazyVim/blob/main/CONTRIBUTING.md) guidelines.