HarmonyOS App Development - Customizable Deletable List Popup

This application implements a custom list popup window function, supporting task addition, deletion, and confirmation. The specific implementation is as follows: 1. **Entity Class**: The `Intention` class is used to define task items. 2. **Data Source Class** (`IntentionDataSource`): Manages data operations for the task list, including CRUD operations and notifying listeners of updates. 3. **Custom Popup Component** (`AddIntentionDialog`): Displays the current task list and provides delete and confirm buttons. (Note: The original text cuts off here, the translation assumes standard functionality continuation)