Add 2 new frontend tests

.graphqlrc

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+schema: 'server/schema.graphql'

client/cypress/integration/frontend/objectives-visibility.spec.js

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+import {getMe} from '../../support/helpers';
+import mocks from '../../fixtures/mocks';
+
+const modules = {
+  'lohn-und-budget': {
+    'objectiveGroups': {
+      'edges': [
+        {
+          'node': {
+            'title': 'LANGUAGE_COMMUNICATION',
+            'objectives': {
+              'edges': [
+                {
+                  'node': {
+                    'text': 'i-am-an-objective',
+                    'hiddenFor': {
+                      'edges': [],
+                    },
+                  },
+                },
+              ],
+            },
+          },
+        },
+      ],
+    },
+  },
+};
+
+const operations = {
+  MeQuery() {
+    return getMe({
+      schoolClasses: ['FLID2018a'],
+      teacher: false,
+    });
+  },
+  ModulesQuery: modules,
+  MySchoolClassQuery: {
+    me: {},
+  },
+  UpdateLastModule: {
+    updateLastModule: {
+      success: true,
+    },
+  },
+  SyncModuleVisibility: {
+    syncModuleVisibility: {
+      success: true,
+    },
+  },
+};
+
+// const mocks = {
+//   UUID: () => 'Whatever',
+//   GenericStreamFieldType: () => [],
+//   ObjectiveGroup: () => ({}),
+//   Module: () => ({
+//     title: 'title',
+//     slug: 'slug',
+//     metaTitle: 'metaTitle',
+//     teaser: 'teaser',
+//     intro: 'intro',
+//     assignments: {edges: []},
+//     objectiveGroups: {edges: []},
+//     id: 'ID',
+//   }),
+// };
+
+describe('Objective Visibility', () => {
+  beforeEach(() => {
+    cy.server();
+    cy.task('getSchema').then(schema => {
+      cy.mockGraphql({
+        schema,
+        // endpoint: '/api/graphql'
+        mocks,
+        operations,
+      });
+    });
+  });
+
+  it('should display the correct objectives', () => {
+    cy.fakeLogin('rahel.cueni', 'test');
+
+    cy.visit('/module/lohn-und-budget');
+  });
+});