Refactor imports in manager.ts and manager-helpers.tsx for consistency

Author: ndelangen

.storybook/manager.ts

@@ -1,6 +1,6 @@
-import { addons } from "storybook/manager-api";
+import { addons } from 'storybook/manager-api';
 
-import { renderLabel } from "../dist/manager-helpers.js";
+import { renderLabel } from '../src/manager-helpers';
 
 /*
  * This is an example of opt-in usage of addon exports. Your users can choose to

src/manager-helpers.tsx

@@ -1,20 +1,17 @@
-import React from "react";
-import type { API_HashEntry } from 'storybook/internal/types'
-import { ADDON_ID } from "./constants";
+import React from 'react';
+import type { API_HashEntry } from 'storybook/internal/types';
+import { ADDON_ID } from './constants';
 
 /**
  * This opt-in helper can be manually imported by your users who want to
  * use it, and ignored by those who don't.
  */
 export function renderLabel(item: API_HashEntry) {
-  if (
-    item.type !== 'story' &&
-    item.type !== 'docs'
-  ) {
-    return
+  if (item.type !== 'story' && item.type !== 'docs') {
+    return;
   }
 
   if (item.title.startsWith(ADDON_ID)) {
-    return <span>🌟 {item.name}</span>
+    return <span>🌟 {item.name}</span>;
   }
-}
+}