test: add end-to-end test for partners page to verify no 500 error

Author: bjohansebas

apps/site/tests/e2e/supporters-page.spec.ts

@@ -0,0 +1,14 @@
+import { test, expect } from '@playwright/test';
+
+test.describe('Supporters page', () => {
+  test('should not return a 500 error for partners page', async ({ page }) => {
+    const response = await page.goto('/en/about/partners');
+
+    expect(response).not.toBeNull();
+    expect(response?.status()).not.toBe(500);
+
+    await expect(
+      page.getByRole('heading', { name: 'Partners & Supporters', level: 1 })
+    ).toBeVisible();
+  });
+});