I need two surgical updates to an existing Bootstrap-based site and then a short write-up of every line you touched. First, add a small “newsflash” area on the home page. It holds one sentence and a link (I will drop my own copy in later, so feel free to start with lorem ipsum). I want to be able to show or hide the entire block simply by commenting or uncommenting a clearly marked snippet—no admin interface, no timer logic. Second, the current course slider shows N cards in a single horizontal strip. I want it rebuilt as a four-row carousel that still scrolls left/right and stays fully responsive: the number of visible cards per row should adapt gracefully to viewport width while always keeping four stacked rows except in the mobile view, where only one row should be shown. Use whatever lightweight JS or Bootstrap carousel utilities make sense as long as you stay within the existing template stack. You’ll receive full code and URL access once we start. Hand back the updated files plus a brief changelog (file names, line numbers, purpose of change) so I can reapply the same edits later if needed.