refactor: adjust CloudHostingNew layout spacing and styling

- Changed image width from full-width to fixed 600px
- Replaced H3 component with native h3 element with responsive text sizing
- Reduced top margin on details section from mt-12 to mt-8

src/pages/cloud/CloudHeroNew.tsx

@@ -3,7 +3,7 @@ import { Button } from "@/components/Button"
 
 export function CloudHeroNew({ onGetStartedClick = () => {} }: { onGetStartedClick?: () => void }) {
   return (
-    <div className="px-4">
+    <div className="">
       {/* Boxed container */}
       <div
         className="relative mx-auto max-w-7xl border border-t-0 border-b-0 border-gray-200 bg-white overflow-hidden bg-contain bg-right bg-no-repeat"