fix: correct greeting logic for afternoon time

Author: pphatdev

app/page.tsx

@@ -49,7 +49,7 @@ export default function HomePage() {
     const greetings = () => {
         const hour = currentTime.getHours();
         if (hour < 12) return 'Good Morning';
-        if (hour < 18) return 'Good Afternoon';
+        if (hour < 17) return 'Good Afternoon';
         return 'Good Evening';
     }