- Added shadow customization options to the theme customizer, allowing users to select from 'none', 'low', 'medium', and 'high'.
- Updated the theme customizer settings interface and default values to include shadow settings.
- Enhanced the CSS variables for shadows in common.scss to support different shadow levels based on user selection.
- Modified the VirtualSlideView component styles to improve layout and scrolling behavior.
- Updated localization files for English, Simplified Chinese, and Traditional Chinese to include new shadow-related terms.
- Adjusted various components to ensure consistent application of shadow styles across the application.
Wrap VirtualSlideView loading content in a horizontal track so media and person slide skeletons keep their original full-width carousel layout and title presentation during loading.
Replace the remaining slide loading fallbacks with VirtualSlideView so horizontal media and person carousels use a single rendering path. Remove the now-unused SlideView component to keep the slide system smaller and easier to maintain.
Limit long-lived page and component retention while virtualizing large card views to keep runtime memory lower. Defer heavy editor, chart, workflow, calendar, and icon code so the app loads less JavaScript up front.
