feat(core): add column pinning and grouping features to Griddy table

- Implement column pinning functionality allowing users to pin columns to the left or right.
- Introduce data grouping capabilities for better data organization.
- Enhance the theming guide with new styles for pinned columns and loading indicators.
- Add infinite scroll support with loading indicators for improved user experience.
- Update CSS styles to accommodate new features and improve visual feedback.

.storybook/preview.ts

@@ -13,7 +13,8 @@ const preview: Preview = {
       },
     },
     layout: 'fullscreen',
+    viewMode: 'responsive',
   },
 };
 
-export default preview;
+export default preview;