Add Google Signin (#7969)

* Start adding google login

* fix local js issue

* implement syntax suggestions

* fix delete social tests

* Add service for authentication alerts

* fix social login tests

* make suggested google sign in changes

* fix accidentally deleted code

* refactor social network sign in

* fix incorrect find

* implement suggested google sign in changes

* fix(tests): Inject fake Auth module for auth controller

* fix(test): prevent social service from causing page reload

* fix loading user info

* Use lodash's implimentation of find for IE compatibility

* chore: increase test coverage around deletion route

* chore: clean up social auth test

* chore: Fix social login tests

* remove profile from login scope

* fix(api): Allow social accounts to deregister as user has auth backup

* temporarily disable google login button

website/client-old/js/services/alertServices.js

@@ -0,0 +1,32 @@
+'use strict';
+
+(function(){
+  angular
+    .module('habitrpg')
+    .factory('Alert', alertFactory);
+
+  alertFactory.$inject = [
+    '$window'
+  ];
+
+  function alertFactory($window) {
+
+    function authErrorAlert(data, status, headers, config) {
+      if (status === 0) {
+        $window.alert(window.env.t('noReachServer'));
+      } else if (status === 400 && data.errors && _.isArray(data.errors)) { // bad requests
+        data.errors.forEach(function (err) {
+          $window.alert(err.message);
+        });
+      } else if (!!data && !!data.error) {
+        $window.alert(data.message);
+      } else {
+        $window.alert(window.env.t('errorUpCase') + ' ' + status);
+      }
+    };
+
+    return {
+      authErrorAlert: authErrorAlert,
+    }
+  }
+}());