Feature Request: Add compatibility with Volar

[MatthewAry]

Volar is used by Vue, Svelte, and Astro to help bridge the gap between Typescript and their own file types. Volar is currently undergoing a rewrite at the moment, once they're done, I hope to see this extension support these incredible ecosystems.

[zcf0508]

I submit a pr to get type from vue file. You can check out #45 .