#29704 BR homepage banners refresh

- Update the main, 2nd, 3rd, and 4th banner.
- Creating a block that has type overlay_link and properties of type text and url.
- Update the carousel background image
- Updating the in-store/viber right side image
- Removing promo banners/details which will not be included on aug 23
- Removing educt banners from the promo collections/promo page that will not be included on aug 23
- Removing extra whitespace on top of the carousel
- Fix the carousel positioning on big screens