feat: show the actual type information when type aliases are used in the hint popup

[AoDev]

I'd like to see proper type information for type aliases in the hint popup. This would improve the developer experience. Especially when types come from a 3rd party library.

The example below is with Typescript but I'd expect it to be a general feature.

Example: a random type with proper info bubble

What VS Code shows now when the type alias is used somewhere

What I'd like to see

[mjbvz]

Tracked upstream by microsoft/TypeScript#35601