Always mock FBLogger during unit tests

Summary: Unit tests tend to randomly bail out once FBLogger is (indirectly) required by some module under test. This makes sure FBLogger is stubbed by default. We might want to do the same for `User` in the future.

Reviewed By: jknoxville

Differential Revision: D22186274

fbshipit-source-id: 2ede364c4b691d69826781355592226b075d8367

desktop/scripts/jest-setup.js

@@ -10,3 +10,5 @@
 global.fetch = require('jest-fetch-mock');
 
 require('immer').enableMapSet();
+
+require('../app/src/fb-stubs/Logger').init(undefined, {isTest: true});