Incorrect type inference in `useAsyncData` with `transform` and `getCachedData`
good first issuetypes
# Incorrect type inference in `useAsyncData` with `transform` and `getCachedData`
only null Type is allowed to useAsyncData's default Type
types3.xpending triageneeds reproduction
Types improvement to `asyncData` with the `default` option
types3.xdx🍰 p2-nice-to-have
useAsyncData's return type for data and error still is `| null` in v4
types3.xbug🔨 p3-minor
Make `transform` in `AsyncDataOptions ` and `UseFetchOptions` less restrictive
enhancement3.x🍰 p2-nice-to-have