Toast component and use for copy-as-curl

src-web/components/DefaultLayout.tsx

@@ -1,12 +1,15 @@
 import { Outlet } from 'react-router-dom';
 import { DialogProvider } from './DialogContext';
 import { GlobalHooks } from './GlobalHooks';
+import { ToastProvider } from './ToastContext';
 
 export function DefaultLayout() {
   return (
     <DialogProvider>
-      <Outlet />
-      <GlobalHooks />
+      <ToastProvider>
+        <Outlet />
+        <GlobalHooks />
+      </ToastProvider>
     </DialogProvider>
   );
 }