Encapsulate electron bar setup

Summary: See D32311662 for details

Reviewed By: mweststrate

Differential Revision: D32357953

fbshipit-source-id: f951e82761f081876ae8e0409f00e19e87047726

desktop/app/src/electron/initializeElectron.tsx

@@ -25,6 +25,7 @@ import {
 import {getRenderHostInstance, setRenderHostInstance} from '../RenderHost';
 import isProduction from '../utils/isProduction';
 import fs from 'fs';
+import {setupMenuBar} from './setupMenuBar';
 
 export function initializeElectron() {
   const app = remote.app;
@@ -100,6 +101,8 @@ export function initializeElectron() {
       desktopPath: app.getPath('desktop'),
     },
   });
+
+  setupMenuBar();
 }
 
 function getStaticDir() {