* Add dependency on @graphql-types-document-node/core

* Add Data/Variables generics and TypedDocumentNode support to @urql/core

* Add typed generics for TypedDocumentNode to react-urql

* Add typed generics for TypedDocumentNode to preact-urql

* Fix Operation type inconsistencies in @urql/core

* Add TypedDocumentNode support to @urql/svelte

* Reexport TypedDocumentNode from @urql/core

* Fix accidental change in executeMutation on useMutation

* Add TypedDocumentNode support to Graphcache methods

* Add changeset

* Update generics in prevState for useQuery and useSubscription