Support TypeScript types

[avivkeller]

Currently, doc-kit treats types in the format of {Type}. Maybe we support additional formats, such as:

• {Generic<Type>} (Complex: Transformer<T, Awaitable<U>>)
• {() => Type} (Complex: (str: MyType) => Promise<T>)

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Perhaps Generics like Transformer<T, Awaitable<U>> and (str: MyType) => Promise<T> are too extreme, but we really need to support basic Generic<Type>

[moshams272]

Following up on our Discord chat yesterday regarding the webpack-doc-kit theme—I ended up tracing the TypeScript types parsing behavior back here and I'd love to help tackle this!

I just want to clarify the exact expected Markdown output. If the parser receives {Promise<string>}, what should the final formatted string look like?

Should it link both parts separately, something like this?
<Promise><<string>>