chore: bump demo version to v0.1.2

Author: asif7774

demo/App.tsx

@@ -117,7 +117,7 @@ function App() {
                     <img src={`${import.meta.env.BASE_URL}logo.png`} alt="OpenGridX Logo" className="app-logo" />
                     <h2 className="app-title">
                         OpenGridX
-                        <span className="app-version">v0.1.1</span>
+                        <span className="app-version">v0.1.2</span>
                     </h2>
                 </div>
 

demo/Home.tsx

@@ -68,7 +68,7 @@ export default function Home(_props: HomeProps) {
                 <div className="home-logo-hero">
                     <img src={`${import.meta.env.BASE_URL}banner.png`} alt="OpenGridX Logo" className="home-banner-image" />
                 </div>
-                <span className="home-badge">OpenGridX v0.1.1</span>
+                <span className="home-badge">OpenGridX v0.1.2</span>
                 <p className="home-subtitle">
                     The elite, high-performance DataGrid for modern React.
                     Built to handle massive data with a premium developer experience.