Refactor authentication flow and improve code organization

The update implemented a redirect functionality in the multi-factor authentication flow for a better user experience. It also involved a refactoring of some parts of the code, substituting direct routing paths with path configs for easier future modifications. Import statements were adjusted for better code organization and readability.

packages/shared/src/utils.ts

@@ -1,3 +1,10 @@
 export function isBrowser() {
   return typeof window !== 'undefined';
 }
+
+export function formatCurrency(currencyCode: string, value: string | number) {
+  return new Intl.NumberFormat('en-US', {
+    style: 'currency',
+    currency: currencyCode,
+  }).format(Number(value));
+}