refactor(starter): upgrade to new version of gatsby

internal/gatsby/queries/categories-query.ts

@@ -0,0 +1,32 @@
+import { CreatePagesArgs } from "gatsby";
+
+interface CategoriesQueryResult {
+  allMarkdownRemark: {
+    group: Array<{
+      fieldValue: string;
+      totalCount: number;
+    }>;
+  };
+}
+
+const categoriesQuery = async (graphql: CreatePagesArgs["graphql"]) => {
+  const result = await graphql<CategoriesQueryResult>(`
+    {
+      allMarkdownRemark(
+        filter: {
+          frontmatter: { template: { eq: "post" }, draft: { ne: true } }
+        }
+        sort: { order: DESC, fields: [frontmatter___date] }
+      ) {
+        group(field: frontmatter___category) {
+          fieldValue
+          totalCount
+        }
+      }
+    }
+  `);
+
+  return result?.data?.allMarkdownRemark?.group ?? [];
+};
+
+export default categoriesQuery;