Add toast to next.js config

Author: devongovett

examples/rsp-next-ts/next.config.mjs

@@ -44,6 +44,7 @@ export default {
     "@react-spectrum/theme-dark",
     "@react-spectrum/theme-default",
     "@react-spectrum/theme-light",
+    "@react-spectrum/toast",
     "@react-spectrum/tooltip",
     "@react-spectrum/view",
     "@react-spectrum/well",