Added new query

src/lib/graphql/queries/getGroupStatsQuery.ts

@@ -0,0 +1,13 @@
+import { gql } from "@urql/core";
+
+const getGroupStats = gql`
+  query getGroupStats($groupID: String!) {
+    getGroupStats(groupID: $groupID) {
+      name
+      username
+      linksDeleted
+    }
+  }
+`;
+
+export default getGroupStats;