[@types/react-query] initialData not typed

[skryvytskyi]

There is initialData in config, but it's not covered with TS

• Authors: @lukaszfiszer , @JaceHensley

[JaceHensley]

I'd be happy to approve a PR for that 😃

[lukaszfiszer]

Fixed in #41208.

This issue can be now closed

[luanlucho]

Hey guys not sure if this was already solved and is going to be released soon.

initialData is typed however the result of useQuery's data is mark as (T | undefined) when it should not be undefined anymore since it was initialised.

[orta]

Hi thread, we're moving DefinitelyTyped to use GitHub Discussions for conversations the @types modules in DefinitelyTyped.

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