fixing delete ttd test

frontend/testing/playwright/tests/main-navigation-between-sub-apps/main-navigation-between-sub-apps.spec.ts

@@ -14,6 +14,8 @@ import { DeployPage } from '../../pages/DeployPage';
 import { Header } from '../../components/Header';
 import { Gitea } from '../../helpers/Gitea';
 
+const getTtdApp = (appName: string) => `ttd-app-${appName}`;
+
 // Before the tests starts, we need to create the dashboard app
 test.beforeAll(async ({ testAppName, request, storageState }) => {
   // Create a new app
@@ -28,7 +30,7 @@ test.afterAll(async ({ request, testAppName }) => {
   expect(response.ok()).toBeTruthy();
 
   const responseTTD = await request.delete(
-    gitea.getDeleteAppEndpoint({ org: 'ttd', app: testAppName }),
+    gitea.getDeleteAppEndpoint({ org: 'ttd', app: getTtdApp(testAppName) }),
   );
   expect(responseTTD.ok()).toBeTruthy();
 });
@@ -138,7 +140,7 @@ test('That it is possible to navigate from overview to the deploy page and back
   storageState,
 }) => {
   const testDepartmentOrg: string = 'ttd';
-  const appName: string = `ttd-app-${testAppName}`; // Need a different app name than the one generated by the user in beforeAll()
+  const appName: string = getTtdApp(testAppName); // Need a different app name than the one generated by the user in beforeAll()
 
   const designerApi = new DesignerApi({ app: appName });
   const response = await designerApi.createApp(