Notification toasts, nicer loading, add new user support

frontend/src/notifications/helpers.tsx

@@ -0,0 +1,27 @@
+import { toast } from "react-toastify";
+import { intl } from "src/locale";
+import { Msg } from "./Msg";
+import styles from "./Msg.module.css";
+
+const showSuccess = (message: string) => {
+	toast(Msg, {
+		className: styles.toaster,
+		data: {
+			type: "success",
+			title: intl.formatMessage({ id: "notification.success" }),
+			message,
+		},
+	});
+};
+
+const showError = (message: string) => {
+	toast(<Msg />, {
+		data: {
+			type: "error",
+			title: intl.formatMessage({ id: "notification.error" }),
+			message,
+		},
+	});
+};
+
+export { showSuccess, showError };