- Added support for additional attachment types: PDF and plain text.
- Updated the TeamProvisioningService to handle new attachment types with appropriate content blocks.
- Enhanced AttachmentDisplay and AttachmentPreview components to differentiate between image and non-image files.
- Modified DropZoneOverlay and SendMessageDialog to reflect changes in file handling and messaging.
- Improved user experience by allowing file previews for non-image attachments and updating error messages accordingly.
- Refactored attachment validation logic to categorize unsupported files and handle them gracefully.
