Add placeholder pages to resolve remaining routes

[reenatoteixeira]

This pull request introduces new placeholder pages for "Clients", "Orders", and "Services", and integrates them into the application's routing. Each page greets the authenticated user and displays a message indicating that content will be added in the future. The new routes are protected, meaning only authenticated users can access them.

New feature pages and exports:

• Added ClientsPage, OrdersPage, and ServicesPage components, each displaying a personalized greeting and a placeholder message. (src/modules/clients/pages/ClientsPage.tsx [1] src/modules/orders/pages/OrdersPage.tsx [2] src/modules/services/pages/ServicesPage.tsx [3]
• Exported these new page components from their respective index.tsx files for easier imports. (src/modules/clients/pages/index.tsx [1] src/modules/orders/pages/index.tsx [2] src/modules/services/pages/index.tsx [3]

Routing integration:

• Imported the new page components into the router and added protected routes for /clients, /orders, and /services, ensuring only authenticated users can access these pages. (src/router/components/AppRoute.tsx [1] [2]