Track more events

- addToCart with product name
- cartOpen
- cartCheckout when going to checkout page

src/components/organisms/Cart.svelte

@@ -15,6 +15,7 @@
     import Icon from '$components/atoms/Icon.svelte'
     import CartItem from '$components/molecules/CartItem.svelte'
     import ShopLocationSwitcher from '$components/molecules/ShopLocationSwitcher.svelte'
+    import { sendEvent } from '$utils/analytics';
 
 
     // Block scroll if cart is open
@@ -139,6 +140,7 @@
                             text="Checkout"
                             color="pink"
                             size="small"
+                            on:click={() => sendEvent('cartCheckout', { props: { amount: $cartAmount }})}
                         />
                     </div>
                 {/if}