Fix: Enable NativeWind by adding missing preset to tailwind.config.js

[abumchi]

What I Did

• Added presets: [require("nativewind/preset")] to tailwind.config.js.

Why It Matters

• NativeWind styles were not being applied in the project initially.
• The nativewind/preset is required for NativeWind to function properly, especially in React Native (Expo) environments.
• This fix ensures that Tailwind CSS utilities are correctly processed by NativeWind.

Additional Notes

• Confirmed the fix works locally after restarting the Expo server.