feat: add immersive store header with carousel and Smooch font

- Implemented a new immersive store header component with a background image, logo, hero content, and a continuous image carousel.
- Integrated the Smooch font for enhanced typography in the header.
- Updated the store layout to support the new immersive header type.
- Added necessary styles and templates for the immersive header and carousel components.
- Enhanced unit tests to cover the new immersive header functionality.

src/_fonts.scss

@@ -1,3 +1,11 @@
+@font-face {
+  font-family: 'Smooch';
+  src: url('/fonts/Smooch/Smooch-Regular.ttf') format('truetype');
+  font-style: normal;
+  font-weight: 400;
+  font-display: swap;
+}
+
 @font-face {
   font-family: "Gotham";
   src: url("/fonts/Gotham/Gotham Thin.otf") format("opentype");