fix logging and packages

Author: vpnu

app/api/concepts/route.ts

@@ -5,7 +5,7 @@ export async function GET(req: Request) {
   try {
     const { searchParams } = new URL(req.url);
     const domain = searchParams.get("domain") || "All";
-
+    
     const concepts = await getConcepts(domain);
 
     return NextResponse.json(concepts);

app/page.tsx

@@ -20,7 +20,7 @@ export default function Home() {
         if (Array.isArray(data)) {
           setConcepts(data);
         } else {
-          console.error("Concepts is not array:", data);
+          console.error("Concepts is not an array:", data);
           setConcepts([]);
         }
       })