Improve exported Vue component typedefs

### On which framework/platform would you like to see this feature implemented?

Vue

### Which UI component is this feature-request for?

Authenticator

### Please describe your feature-request in detail.

When using `@aws-amplify/ui-vue` in a consuming project, the exported type definitions for the Authenticator component props defines most properties as `any` or `unknown`. There is a more precise definition available in the codebase:

https://github.com/aws-amplify/amplify-ui/blob/505a4db44e500551aaaca21626829736f75a8d49/packages/vue/src/components/authenticator.vue#L35-L44

Would it be possible to export this full type definition? I imagine this issue might apply to other components as well.

### Please describe a solution you'd like.

_No response_

### We love contributors! Is this something you'd be interested in working on?

- [ ] 👋 I may be able to implement this feature request.
- [ ] ⚠️ This feature might incur a breaking change.

Start by reading packages/vue/src/components/authenticator.vue around lines 35–44 and compare that precise Authenticator prop definition with the types exported by @aws-amplify/ui-vue. Check whether the same issue affects other components, as suggested in the request. Done means consumers can access the full Authenticator prop types instead of mostly any or unknown values.

Written by the indexing model from the issue text.