Carousel: Use the counter as a component

- Add animation when changing photos
- Reusable and scalable to more than XX photos

src/style/style.scss

@@ -21,6 +21,7 @@
 @import "atoms/toggle";
 @import "atoms/link";
 @import "atoms/switcher";
+@import "atoms/counter";
 
 // Molecules
 @import "molecules/location";