✨ Feature Request: Add support for Astro files (.astro)

[TheElegantCoding]

🚀 Description

I am requesting the addition of support for Astro files (.astro) to this extension.

Astro is a modern static site builder that uses a component-based approach (similar to React/Vue/Svelte) but focuses on shipping zero JavaScript by default, making it highly relevant for performance-focused developers.

🎯 Motivation

Adding support for .astro files would significantly enhance the utility and reach of this extension for users working within the Astro ecosystem.

Specifically, full support should ideally include:

1. Syntax Highlighting: Ensuring proper rendering and distinction of the HTML, CSS (including scoped styles), and frontmatter (JavaScript/TypeScript) sections within the .astro files.
2. IntelliSense/Code Completion: Providing accurate suggestions and autocompletion within the Astro component structure.
3. Language Server Protocol (LSP) Features: Supporting features like go-to-definition, hover information, and refactoring, especially for components and props.

The Astro framework is rapidly growing, and integrating it would greatly benefit developers using it, as they currently lack optimal support for this file type.