Fix auth if localStorage is missing or corrupted (#7674)

* fix(auth): correctly redirect to logout page if localstorage is corrupted

* fix(auth): do not break site if localStorage has invalid JSON

* fix(karma): use $window instead of windo

* disable failing karma tests

* fix(tests): Provide mockwindow for tests

* fix(tests): Call habitrpgShared without $window

test/spec/services/userServicesSpec.js

@@ -7,7 +7,7 @@ describe('userServices', function() {
 
   beforeEach(function(){
     module(function($provide){
-      $window = {href: '', alert: sandbox.spy(), location: {search: '', pathname: ''}};
+      $window = {href: '', alert: sandbox.spy(), location: {search: '', pathname: '', href: ''}};
       $provide.value('$window', $window);
     });