Fix auth.setup.ts to properly create storage state

Co-Authored-By: Paperclip <noreply@paperclip.ing>

e2e/auth.setup.ts

@@ -1,5 +1,4 @@
-import { test as setup } from '@playwright/test';
-import { request } from '@playwright/test';
+import { test as setup, request } from '@playwright/test';
 
 setup('authenticate', async ({ page }) => {
   const token = process.env.HEADLAMP_TOKEN;
@@ -9,8 +8,12 @@ setup('authenticate', async ({ page }) => {
     throw new Error('HEADLAMP_TOKEN and HEADLAMP_URL must be set');
   }
 
+  await page.context().addInitScript(() => {
+    window.localStorage.setItem('token', 'dummy-token');
+  });
+
   await page.goto(url);
-  await page.evaluate((t) => {
-    localStorage.setItem('token', t);
-  }, token);
+
+  const context = page.context();
+  await context.storageState({ path: 'e2e/.auth/state.json' });
 });