Toast on error generating token (#88)

src/pages/_app.tsx

@@ -1,10 +1,12 @@
 import { CloudProvider } from "@/cloud/useCloud";
 import "@/styles/globals.css";
 import type { AppProps } from "next/app";
+import { Toaster } from "react-hot-toast";
 
 export default function App({ Component, pageProps }: AppProps) {
   return (
     <CloudProvider>
+      <Toaster />
       <Component {...pageProps} />
     </CloudProvider>
   );}