0.10.0

• Expose Web Pixel events via new checkoutDidEmitWebPixelEvent hook - #101, #103, #105, #107, #112 (@josemiguel-alvarez, @kiftio , @markmur)
• Send Sec-Purpose: prefetch header to identify preload requests - #109 (@kiftio)
• Improve caching of preloaded checkout views - #97, #102, #110 (@cianbuckley)
• Improve UX for loading spinner - #111 (@markmur)