Refactor API structure to unify model operations

- Introduced MODEL_TYPES and MODEL_CONFIG for centralized model type management.
- Created a unified API client for checkpoints and loras to streamline operations.
- Updated all API calls in checkpointApi.js and loraApi.js to use the new client.
- Simplified context menus and model card operations to leverage the unified API client.
- Enhanced state management to accommodate new model types and their configurations.
- Added virtual scrolling functions for recipes and improved loading states.
- Refactored modal utilities to handle model exclusion and deletion generically.
- Improved error handling and user feedback across various operations.

py/utils/routes_common.py

@@ -1038,6 +1038,7 @@ class ModelRouteUtils:
             return web.json_response({
                 'success': True,
                 'new_file_path': new_file_path,
+                'new_preview_path': config.get_preview_static_url(new_preview),
                 'renamed_files': renamed_files,
                 'reload_required': False
             })