Initialisation

Added the packages and files for the backend server

node_modules/graphql/language/location.d.ts

@@ -0,0 +1,16 @@
+import type { Source } from './source';
+/**
+ * Represents a location in a Source.
+ */
+export interface SourceLocation {
+  readonly line: number;
+  readonly column: number;
+}
+/**
+ * Takes a Source and a UTF-8 character offset, and returns the corresponding
+ * line and column as a SourceLocation.
+ */
+export declare function getLocation(
+  source: Source,
+  position: number,
+): SourceLocation;