Refactor authentication and dashboard components

- Updated login and signup pages to include session checks and redirection based on user authentication status.
- Introduced QueryProvider for managing server state in the application.
- Enhanced user experience by integrating session management in the devices and payments dashboard.
- Added new user management features with role-based access control in the sidebar.
- Created new components for user devices and payments, improving the overall structure and maintainability of the dashboard.
- Implemented a table component for better data presentation in user-related views.

app/(dashboard)/user-devices/page.tsx

@@ -0,0 +1,5 @@
+import React from "react";
+
+export default function UserDevices() {
+	return <div>UserDevices</div>;
+}