type of htm/preact and htm directly are different

https://github.com/developit/htm/blob/d62dcfdc721e47bc1923a2cb7a01ebd594ab0c25/src/integrations/preact/index.d.ts#L4

this returns VNode, while if you do `htm.bind(h)` the inferred return type is `VNode | VNode[]`

https://github.com/developit/htm/blob/d62dcfdc721e47bc1923a2cb7a01ebd594ab0c25/src/index.d.ts#L2-L4

Which one of the two types is correct? Should this be changed in the htm/preact type?

Start with src/integrations/preact/index.d.ts and src/index.d.ts at the referenced lines, then compare how the two declarations infer the tagged-template return type. Resolve which type matches the intended API and apply that choice consistently; done when the direct htm/preact type and htm.bind(h) type no longer disagree.

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