Fix build for debugger-shell (facebook#53924)

Summary:
Pull Request resolved: facebook#53924

Fix failing `yarn build` runs following D83070252.

Changelog: [Internal]

Reviewed By: motiz88

Differential Revision: D83161092

fbshipit-source-id: 3e9e984699750add82794281a387eac0534da60d

Author: huntie

packages/debugger-shell/src/electron/MainInstanceEntryPoint.js

@@ -8,12 +8,14 @@
  * @format
  */
 
-// $FlowFixMe[unclear-type] We have no Flow types for the Electron API.
-const {BrowserWindow, Menu, app, shell, ipcMain} = require('electron') as any;
-const SettingsStore = require('./SettingsStore.js');
+import SettingsStore from './SettingsStore.js';
+
 const path = require('path');
 const util = require('util');
 
+// $FlowFixMe[unclear-type] We have no Flow types for the Electron API.
+const {BrowserWindow, Menu, app, shell, ipcMain} = require('electron') as any;
+
 const appSettings = new SettingsStore();
 const windowMetadata = new WeakMap<
   typeof BrowserWindow,

packages/debugger-shell/src/electron/SettingsStore.js

@@ -29,7 +29,7 @@ type Options = $ReadOnly<{
  * - Maintains API and file format compatibility with `electron-store@8.2.0`.
  * - Supports the Electron main process only.
  */
-class SettingsStore {
+export default class SettingsStore {
   #defaultValues: Object = {};
   path: string;
 
@@ -126,5 +126,3 @@ class SettingsStore {
     fs.writeFileSync(this.path, data, {mode: 0o666});
   }
 }
-
-module.exports = SettingsStore;