Release testing instructions: Storefront 3.6.0

Fix potential error that can occur when product is null on sticky add to cart (#1650)

Make sure there are no regressions in the sticky Add to cart bar shown in the Product page:

1. Go to a single product page.
2. Scroll down until the add to cart button is out of view.
3. Confirm the sticky cart shows as normal.

Accessibility: add aria-label on breadcrumbs (#1668)

1. View page on the frontend with a breadcrumb, for example, the shop page.
2. Inspect source and confirm the nav element has an aria label.

Remove Jquery Pointer Events Polyfill (PEP) (#1654)

• Create a menu with nested items (dropdowns).
• Using a mouse, you should be able to hover the top item to reveal the menu and click on an item to navigate to a page.
• Using a touch screen device, when tapping on the top item, the first screen should open the dropdown. Tapping again on the top item should redirect to the page. Note you need to be looking at the site in desktop mode, not handheld. Use a larger device like an iPad or request desktop site in your mobile browser.