attempt to fix flaky e2e test (#14949)

Co-authored-by: CarinaWolli <wollencarina@gmail.com>

apps/web/playwright/webhook.e2e.ts

@@ -578,6 +578,8 @@ test.describe("FORM_SUBMITTED", async () => {
       ],
     });
 
+    await page.waitForLoadState("networkidle");
+
     await gotoRoutingLink({ page, formId: form.id });
     const fieldName = "name";
     await page.fill(`[data-testid="form-field-${fieldName}"]`, "John Doe");
@@ -637,6 +639,8 @@ test.describe("FORM_SUBMITTED", async () => {
       ],
     });
 
+    await page.waitForLoadState("networkidle");
+
     await gotoRoutingLink({ page, formId: form.id });
     const fieldName = "name";
     await page.fill(`[data-testid="form-field-${fieldName}"]`, "John Doe");