#25610 Bbar redesign homepage carousel banner

- Installing flickity slider plugin using node package manager
- Add conditional class to the container of the slider if the schema blocks with property type of banners have 1 or more items add class 'hero-slider'
- Import flickity to the main js file and install jquery and jquery bridget dependencies.
- initialize the hero slider using flickity and add options that will hide dots nav and show previous and next buttons