Initialisation

Added the packages and files for the backend server

node_modules/graphql/validation/rules/KnownFragmentNamesRule.d.ts

@@ -0,0 +1,13 @@
+import type { ASTVisitor } from '../../language/visitor';
+import type { ValidationContext } from '../ValidationContext';
+/**
+ * Known fragment names
+ *
+ * A GraphQL document is only valid if all `...Fragment` fragment spreads refer
+ * to fragments defined in the same document.
+ *
+ * See https://spec.graphql.org/draft/#sec-Fragment-spread-target-defined
+ */
+export declare function KnownFragmentNamesRule(
+  context: ValidationContext,
+): ASTVisitor;