Address code review feedback - update to 5.0.1, improve error message, use underscore prefix

Co-authored-by: MathiasVDA <[email protected]>

Author: Copilot

package-lock.json

@@ -3,7 +3,7 @@
   "version": "0.1.0",
   "private": true,
   "dependencies": {
-    "@matdata/yasgui": "^4.8.0",
+    "@matdata/yasgui": "^5.0.1",
     "@testing-library/jest-dom": "^5.17.0",
     "@testing-library/react": "^13.4.0",
     "@testing-library/user-event": "^13.5.0",

package.json

@@ -9,7 +9,7 @@ export default function App() {
     const Yasgui = window.Yasgui?.default || window.Yasgui?.Yasgui;
 
     if (!Yasgui) {
-      console.error("Yasgui is not loaded yet");
+      console.error("Failed to load Yasgui library. Please ensure yasgui.min.js is properly loaded.");
       return;
     }
 
@@ -74,8 +74,8 @@ export default function App() {
       },
     };
 
-    // eslint-disable-next-line no-unused-vars
-    const yasgui = new Yasgui(document.getElementById("yasgui"), config);
+    // Initialize Yasgui instance (underscore prefix indicates intentionally unused variable)
+    const _yasgui = new Yasgui(document.getElementById("yasgui"), config);
 
     return () => {};
   }, []);