Initialisation

Added the packages and files for the backend server

node_modules/graphql/jsutils/mapValue.d.ts

@@ -0,0 +1,9 @@
+import type { ObjMap, ReadOnlyObjMap } from './ObjMap';
+/**
+ * Creates an object map with the same keys as `map` and values generated by
+ * running each value of `map` thru `fn`.
+ */
+export declare function mapValue<T, V>(
+  map: ReadOnlyObjMap<T>,
+  fn: (value: T, key: string) => V,
+): ObjMap<V>;