- Updated global CSS to include new status colors for better visual feedback.
- Refined button, badge, card, and input components with enhanced styles and transitions for a more polished user experience.
- Adjusted sidebar and dialog components for improved aesthetics and usability.
- Implemented gradient backgrounds and shadow effects across various sections to elevate the overall design.
- Enhanced keyboard shortcuts and settings views with consistent styling and layout adjustments for better accessibility.
- Introduced a new red theme with custom color variables for a bold aesthetic.
- Updated the theme management to include the new red theme option.
- Added a BoardBackgroundModal component for managing board background settings, including image uploads and opacity controls.
- Enhanced KanbanCard and KanbanColumn components to support new background settings such as opacity and border visibility.
- Updated API client to handle saving and deleting board backgrounds.
- Refactored theme application logic to accommodate the new preview theme functionality.
