Implements a dedicated page for viewing detailed stock picking information.
- Introduces `getStockPikingById` API call to fetch a single stock picking record by ID.
- Enhances `MainAppbarComponent` to support customizable leading widgets, enabling a back button on detail pages.
- Improves `QuickActionComponent` by allowing optional `onTap` callbacks for actions, making buttons conditionally visible and reusable across different contexts.
- Adds `margin` property to `StockPickingCard` for flexible layout adjustments.
- Refactors `ReceptionDetailsPage` to utilize the new API call and display a single stock picking's details, adapting its app bar and quick actions accordingly.
Updates the sign-in API endpoint to `/simpos/v1/sign_in`.
Captures the `set-cookie` header from successful sign-in responses and stores it as a `sessionId`.
Persists the session ID using secure storage and includes it in subsequent API requests via the `Cookie` header for improved session management.
Extends the `AuthModel` to include the new `sessionId` field.
Enables navigation from the reception list to a new reception details page, passing the selected reception's ID.
Refactors the `StockPickingCard` into a dedicated component and adds loading indicators to the reception list.
