feat(admin,admin-ui,medusa): Add Medusa Admin plugin (#3334)

packages/admin-ui/ui/src/utils/validate-email.ts

@@ -0,0 +1,7 @@
+export const validateEmail = (email: string) => {
+  return email
+    .toLowerCase()
+    .match(
+      /^(([^<>()[\]\\.,;:\s@"]+(\.[^<>()[\]\\.,;:\s@"]+)*)|(".+"))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))$/
+    )
+}