Major changes:
- Redesign cabinet with Linear-style components and top navigation
- Replace detail modals with dedicated pages (users, broadcasts, email templates)
- Add email channel support for broadcasts
- Remove pull-to-refresh, improve drag-and-drop on touch devices
- Fix Telegram Mini App: fullscreen, back button, scroll restoration
- Unify admin pages color scheme to design system
- Mobile-first improvements: horizontal tabs for settings, better touch targets
- Removed VITE_APP_VERSION from Dockerfile and GitHub workflows.
- Simplified Vite configuration by eliminating the Git version retrieval function and global constant for app version.
- Updated ColorPicker and other components to enhance accessibility with aria-labels.
- Introduced unique identifiers for buttons in the AppEditorModal for better React key management.
- Improved error handling in the Login component to provide user-friendly messages without exposing sensitive data.