move node types, stub node modules

Summary: This diff stubs all node modules when running in the browser, so that, albeit with a lot of errors and without plugins, the UI loads in a browser. To be continued in the rest of this diff

Reviewed By: antonk52

Differential Revision: D32665705

fbshipit-source-id: 4632e241f59c5b9712a41d01a26878afb01f69b5

desktop/app/src/electron/initializeElectron.tsx

@@ -179,7 +179,7 @@ export function initializeElectron(
     },
     flipperServer,
     async requirePlugin(path) {
-      return (window as any).electronRequire(path);
+      return global.electronRequire(path);
     },
     getStaticResourceUrl(relativePath): string {
       return (