<!-- This is an auto-generated comment: release notes by coderabbit.ai
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## Summary by CodeRabbit
- **New Features**
- Introduced file, image, and document attachment support in the input
box, including new UI components for managing and previewing
attachments.
- Added a searchable document picker view and a file attachment header
with interactive management options.
- Enabled an attachment management controller for viewing and deleting
attachments.
- Improved image attachment bar with horizontal scrolling and removal
functionality.
- Enhanced error handling for file attachments, providing user-facing
alerts.
- **Improvements**
- Updated attachment menus for clearer file type indications.
- Streamlined attachment handling logic and UI updates for a smoother
user experience.
- **Bug Fixes**
- Addressed error notification by replacing console logging with user
alerts when file attachment issues occur.
- **Refactor**
- Replaced and reorganized the input box view model and attachment bar
for better modularity and maintainability.
- **Chores**
- Updated asset catalogs to include new attachment icons for various
file types.
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