Add storybook component for "result format" dropdown

Author: shati-patel

extensions/ql-vscode/src/stories/variant-analysis/RepositoriesResultFormat.stories.tsx

@@ -0,0 +1,27 @@
+import * as React from "react";
+import { useState } from "react";
+
+import { Meta } from "@storybook/react";
+
+import { RepositoriesResultFormat as RepositoriesResultFormatComponent } from "../../view/variant-analysis/RepositoriesResultFormat";
+import { ResultFormat } from "../../variant-analysis/shared/variant-analysis-result-format";
+
+export default {
+  title: "Variant Analysis/Repositories Result Format",
+  component: RepositoriesResultFormatComponent,
+  argTypes: {
+    value: {
+      control: {
+        disable: true,
+      },
+    },
+  },
+} as Meta<typeof RepositoriesResultFormatComponent>;
+
+export const RepositoriesResultFormat = () => {
+  const [value, setValue] = useState(ResultFormat.Alerts);
+
+  return (
+    <RepositoriesResultFormatComponent value={value} onChange={setValue} />
+  );
+};