Add test for and fix bug in projects page

client/src/components/portfolio/CreateProjectButton.vue

@@ -1,8 +1,7 @@
 <template>
   <router-link
     :to="createProjectRoute"
-    class="button button--primary"
-    data-cy="add-project-button">Projekt erstellen
+    class="button button--primary">Projekt erstellen
   </router-link>
 </template>
 

client/src/components/portfolio/PortfolioOnboarding.vue

@@ -15,7 +15,7 @@
       Hier können Sie Projekte erstellen, um Ihre Gedanken festzuhalten oder Ihre Arbeit zu dokumentieren.
     </p>
 
-    <create-project-button />
+    <create-project-button data-cy="create-project-button-onboarding" />
   </div>
 </template>
 

client/src/pages/portfolio/newProject.vue

@@ -39,10 +39,7 @@
             try {
               const data = store.readQuery({query: PROJECTS_QUERY});
               if (data.projects) {
-                data.projects.edges.unshift({
-                  node: project,
-                  __typename: 'ProjectNode'
-                });
+                data.projects.unshift(project);
                 store.writeQuery({query: PROJECTS_QUERY, data});
               }
             } catch (e) {

client/src/pages/portfolio/portfolio.vue

@@ -5,6 +5,7 @@
         <h1 data-cy="page-title">Portfolio</h1>
 
         <create-project-button
+          data-cy="create-project-button"
           class="portfolio__create-button"
           v-if="!isReadOnly" />