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/App.tsx

@@ -5,9 +5,9 @@ import CloudPage from './pages/cloud/CloudPage'
 import NetworkPage from './pages/network/NetworkPage'
 import AgentsPage from './pages/agents/AgentsPage'
 import DownloadPage from './pages/download/DownloadPage'
-import Compute from './pages/compute/Compute'
-import Storage from './pages/storage/Storage'
-import Gpu from './pages/gpu/Gpu'
+import { CallToAction as ComputeCallToAction } from './pages/compute/CallToAction'
+import { CallToAction as StorageCallToAction } from './pages/storage/CallToAction'
+import { CallToAction as GpuCallToAction } from './pages/gpu/CallToAction'
 
 function App() {
   return (
@@ -19,9 +19,9 @@ function App() {
           <Route path="network" element={<NetworkPage />} />
           <Route path="agents" element={<AgentsPage />} />
                     <Route path="download" element={<DownloadPage />} />
-          <Route path="compute" element={<Compute />} />
-          <Route path="storage" element={<Storage />} />
-          <Route path="gpu" element={<Gpu />} />
+          <Route path="compute" element={<ComputeCallToAction />} />
+          <Route path="storage" element={<StorageCallToAction />} />
+          <Route path="gpu" element={<GpuCallToAction />} />
         </Route>
       </Routes>
     </BrowserRouter>