as long as we're using the themed components, we don't need to worry about conditionally styling things within the pages anymore based on the users color scheme setting because all that heavy lifting gets done within those themed components → 6- Themed UI Components, ChildernProp-Shortcut, Spacer, utility components, (important)
/auth/login.jsx → /auth/login
Wrap folder in parentheses:
/(auth)/login.jsx → /login
👉 Folder is used for organization ONLY, not URL.

Inside (auth):
login.jsx and register.jsx