Eliminated the ability to resize dashboard widgets by removing colSpan from WidgetConfig, related UI, and logic. Removed edit mode functionality and the EditDashboardButton, simplifying the dashboard layout and widget management. Updated drag-and-drop strategy to vertical list and incremented the storage key version.
Introduces a modular dashboard system with draggable, configurable widgets including revenue, low stock, recent customers, and pending chats. Adds a dashboard editor for layout customization, widget visibility, and settings. Refactors dashboard content to use the new widget system and improves UI consistency and interactivity.
