Enhances dashboard with new metrics and charts

Improves the dashboard with additional metrics and visualizations
to provide a more comprehensive overview of application usage and performance.

Adds new charts, including:
- Word cloud for category analysis
- Geographic map for user distribution (simulated data)
- Response time distribution chart

Refactors existing components for improved clarity and reusability,
including the introduction of a generic `MetricCard` component.

Improves error handling and user feedback during data refresh and
session loading.

Adds recommended VSCode extensions for ESLint and Prettier.

pages/api/dashboard/settings.ts

@@ -5,7 +5,7 @@ import { authOptions } from "../auth/[...nextauth]";
 
 export default async function handler(
   req: NextApiRequest,
-  res: NextApiResponse,
+  res: NextApiResponse
 ) {
   const session = await getServerSession(req, res, authOptions);
   if (!session?.user || session.user.role !== "admin")