PeterMuenchow

Typescript type error for GraphQLFieldExtensions

1

There is a wrong typing for `GraphQLFieldExtensions` which is not compatible with the current graphql package leading to a TypeScript error. join-monster: 3.3.2 graphql: 16.8.1 ``` node_modules/graphql/type/definition.d.ts:526:18 - error TS2428:...

fixes #510