NODE_ENV variable checked incorrectly

[Lonli-Lokli]

Environment

• Package version(s): 5.13.0
• Operating System: Windows
• Browser name and version: MS Edge

Code Sandbox

[Link to a minimal repro (fork this code sandbox): ](https://stackblitz.com/edit/vitejs-vite-q2tc8k?file=src%2Fmain.tsx,src%2FApp.tsx&terminal=dev)

Steps to reproduce

Open the dev console, you will see this error message even for site built with production mode

Actual behavior

[Blueprint] Could not load "en-US" date-fns locale, please check that this locale code is supported: https://github.com/date-fns/date-fns/tree/main/src/locale

Expected behavior

No errors in console as it's built in production mode

Possible solution

Update from NODE_ENV to process.env.NODE_ENV to support non-webpack users

blueprint/packages/icons/src/loaderUtils.ts

Line 22 in 4d1297a

return typeof NODE_ENV !== "undefined" && NODE_ENV === env;