feat: add cloud services dropdown menu in header

- Replaced individual cloud service pages with CallToAction components for Compute, Storage and GPU
- Added dropdown menu in header to consolidate cloud service navigation options
- Removed redundant page components (Compute.tsx, Storage.tsx, Gpu.tsx) that shared identical layouts
- Updated route components to use new CallToAction components
- Added ChevronDownIcon to visually indicate dropdown functionality

src/components/ui/Dropdown.tsx

@@ -0,0 +1,55 @@
+import { Menu, Transition } from '@headlessui/react'
+import { Fragment } from 'react'
+import { Link } from 'react-router-dom'
+
+interface DropdownItem {
+  name: string
+  href: string
+}
+
+interface DropdownProps {
+  buttonContent: React.ReactNode
+  items: DropdownItem[]
+}
+
+export function Dropdown({ buttonContent, items }: DropdownProps) {
+  return (
+    <Menu as="div" className="relative inline-block text-left">
+      <div>
+        <Menu.Button className="inline-flex w-full justify-center items-center gap-x-1.5 rounded-md bg-white text-base/7 tracking-tight text-gray-700 hover:text-cyan-500 transition-colors">
+          {buttonContent}
+        </Menu.Button>
+      </div>
+
+      <Transition
+        as={Fragment}
+        enter="transition ease-out duration-100"
+        enterFrom="transform opacity-0 scale-95"
+        enterTo="transform opacity-100 scale-100"
+        leave="transition ease-in duration-75"
+        leaveFrom="transform opacity-100 scale-100"
+        leaveTo="transform opacity-0 scale-95"
+      >
+        <Menu.Items className="absolute right-0 z-10 mt-2 w-56 origin-top-right rounded-md bg-white shadow-lg ring-1 ring-black ring-opacity-5 focus:outline-none">
+          <div className="py-1">
+            {items.map((item) => (
+              <Menu.Item key={item.href}>
+                {({ active }) => (
+                  <Link
+                    to={item.href}
+                    className={`
+                      ${active ? 'bg-gray-100 text-gray-900' : 'text-gray-700'}
+                      'block px-4 py-2 text-sm'
+                    `}
+                  >
+                    {item.name}
+                  </Link>
+                )}
+              </Menu.Item>
+            ))}
+          </div>
+        </Menu.Items>
+      </Transition>
+    </Menu>
+  )
+}