Introduce mock cloud components for easier maintainability (#49)

src/pages/_app.tsx

@@ -1,6 +1,10 @@
+import { CloudProvider } from "@/cloud/useCloud";
 import "@/styles/globals.css";
 import type { AppProps } from "next/app";
 
 export default function App({ Component, pageProps }: AppProps) {
-  return <Component {...pageProps} />;
-}
+  return (
+    <CloudProvider>
+      <Component {...pageProps} />
+    </CloudProvider>
+  );}