Add entering transition on Shop and fix some styling

- Center intro title vertically
- Cart item styling tweaks
- Add cart button quantity label inside of button so it's clickable

src/style/pages/shop/_intro.scss

@@ -80,13 +80,14 @@
 
 
         @include bp (sm) {
-            top: clamp(#{rem(40px)}, 16vw, #{rem(144px)});
+            // top: clamp(#{rem(40px)}, 16vw, #{rem(144px)});
+            top: 40%;
             left: 0;
             font-size: clamp(#{rem(40px)}, 8vw, #{rem(96px)});
             transform: none;
         }
         @include bp (md) {
-            top: clamp(#{rem(40px)}, 10vw, #{rem(96px)});
+            // top: clamp(#{rem(40px)}, 10vw, #{rem(96px)});
             font-size: clamp(#{rem(40px)}, 6vw, #{rem(96px)});
         }