Patch: Receipt page (#7)

* OrderSection receipts list of lineItems instead of always getting cart

* Hide express checkout behind feature flag

* Add torn receipt paper css look to order list

* Re-use OrderSection on receipt page

* Linting

* Reduced max font from 130->120%, now only applies scaling on div.main

Reducing relative font size for the largest screen width.
Scaling only applies to main container, not header and footer.

* Minor header size changes

* Set max-width to login input elements on desktop

* Prettier doesn't liek shorthand props

src/routes/checkout/ExpressSection.svelte

@@ -1,6 +1,5 @@
 <script lang="ts">
   import Vipps from '$lib/icons/Vipps.svelte';
-  import ShopPay from '$lib/icons/ShopPay.svelte';
   import ApplePay from '$lib/icons/ApplePay.svelte';
   import PayPal from '$lib/icons/PayPal.svelte';
   import GooglePay from '$lib/icons/GooglePay.svelte';