Fix node-fetch bundling

Summary:
In electron setup, bundlers usually bundle for browser environments. In browser envs, bundles seem to pick up .mjs files first. .mjs fro node-fetch exports fetch as a default export. This fix allows bundling of npm-api for electron.

Closes https://github.com/facebook/flipper/issues/3752

https://github.com/doowb/npm-api/pull/25/files

Reviewed By: lblasa

Differential Revision: D36758469

fbshipit-source-id: bf6c27ed37cb0baa54382ea563902e6e77a118e9

desktop/patches/npm-api+1.0.1.patch

@@ -0,0 +1,15 @@
+diff --git a/node_modules/npm-api/lib/registry.js b/node_modules/npm-api/lib/registry.js
+index daca66a..38e0ae9 100644
+--- a/node_modules/npm-api/lib/registry.js
++++ b/node_modules/npm-api/lib/registry.js
+@@ -1,6 +1,9 @@
+ 'use strict';
+ 
+-const fetch = require('node-fetch');
++let fetch = require('node-fetch');
++if (fetch.default) {
++  fetch = fetch.default
++}
+ const utils = require('./utils');
+ const config = require('./config');
+