VIA-598 AJ Try to fix E2E tests failing on SafariIphone

- Fetch API cannot load /vaccines/rsv due to access control checks
- raised from /_next/static/chunks/255-6080d22baa93e028.js:1:29579

Author: ankur-jain-nhs

e2e/helpers.ts

@@ -17,6 +17,7 @@ export const getEnv = (name: string) => {
 };
 
 export const clickLinkAndExpectPageTitle = async (page: Page, linkText: string, expectedPageTitle: string) => {
+  await page.waitForLoadState("networkidle", { timeout: 30000 });
   await page.getByRole("link", { name: linkText, exact: true }).click();
   await page.waitForLoadState("networkidle", { timeout: 30000 });
   await expect(page).toHaveTitle(expectedPageTitle);