- Added functionality to mark documents as favorites, including new hooks `useMakeFavoriteDoc` and `useRemoveFavoriteDoc` for managing favorite status. - Enhanced the document management API to support favorite filtering with the `is_favorite` parameter. - Created a new e2e test for the favorite workflow to ensure proper functionality. - Updated the UI components to reflect favorite status, including changes in `DocsGridActions`, `DocsGridItem`, and the new `LeftPanelFavorites` component for displaying pinned documents. - Adjusted SVG assets for better visual representation of pinned documents.