Pagination and query TypeScript improvements

The current TypeScript related improvements in v5 are pretty solid but the following improvements should still be included:

Typed queries: This would allow to type params.query which will play well with the new schema types.
Inferred pagination: The return value for a find is currently Paginated<T>|T[] which means you always have to cast the result. We should find a way to either set a fixed find return value or infer it from the paginate settings.

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