fix: access exposed properties from wrapper

[danielroe]

this is work in progress from a stream - adding here to prevent it from being lost

[soil7800]

@danielroe Do you have plans to continue working on this PR?

[danielroe]

Thanks for the reminder! I will indeed, but if you want to pick it up before I do, I would certainly be grateful. 🙏

[soil7800]

I'm not sure if I can solve this issue. 😢
In your example it is possible to access objects via

expect(component.vm.$.exposed.someRef.value).toBe('thing')

but no proxy is created for it.
Looks like a problem with suspend #vuejs/core/issues/7346