fix: stronger enforcement of normalizeLink (#6728)

Co-authored-by: dwelle <luzar.david@gmail.com>

src/data/url.ts

@@ -0,0 +1,9 @@
+import { sanitizeUrl } from "@braintree/sanitize-url";
+
+export const normalizeLink = (link: string) => {
+  return sanitizeUrl(link);
+};
+
+export const isLocalLink = (link: string | null) => {
+  return !!(link?.includes(location.origin) || link?.startsWith("/"));
+};