refactor: remove unused imports across cloud page components

- Cleaned up unused component imports (CircleBackground, Button, Texts components)
- Removed unused utility function classNames
- Changed button color prop from "dark" to "white" in CallToAction component

src/pages/cloud/CloudHostingNew.tsx

@@ -7,12 +7,8 @@ import {
 } from '@headlessui/react'
 import { MinusIcon, PlusIcon } from '@heroicons/react/24/outline'
 
-import { H1, H5, Eyebrow, H3, P } from "@/components/Texts"
-import { Button } from "@/components/Button"
+import { Eyebrow, H3 } from "@/components/Texts"
 
-function classNames(...classes) {
-  return classes.filter(Boolean).join(' ')
-}
 
 const product = {
   subtitle: 'capabilities',