Integrate shadcn-ui in packages/ui

[sheik-mostafizur]

We need to integrate shadcn/ui into the shared UI package located in the packages/ui directory.
This integration will allow us to maintain a consistent design system across all our applications by centralizing common UI components.
Since we're using TurboRepo for mono repo management, the setup must align with Turbo’s architecture to ensure efficient builds and shared dependencies.

Additionally, you can add tailwind-config