- Added DocumentUploadDialogProvider to manage document upload dialog state across components.
- Updated DashboardClientLayout to include the DocumentUploadDialogProvider for improved user experience.
- Refactored DocumentsTableShell to utilize the new dialog for file uploads instead of navigating to a separate upload page.
- Removed the deprecated upload page and streamlined document upload handling within the dialog.
- Enhanced DocumentUploadTab with improved file type handling and user feedback during uploads.
- Updated GridPattern styling for better visual consistency.
- Renamed "Documents" section to "Sources" in the dashboard layout.
- Updated routing for adding sources and managing documents.
- Refactored the connectors and documents upload pages to redirect to the new sources section.
- Added localization support for the new "Sources" terminology in English and Chinese.
