Implemented comprehensive user editing in admin dashboard with PATCH endpoint for updating email, display name, role, password, and disabled status. Added validation to prevent admins from demoting or disabling themselves, and duplicate email detection. Refactored AdminPanel to modal-based editor with separate create/edit modes, form state management, and save/cancel actions. Enhanced UI with field labels, checkbox for account status, action
This commit introduces the `display_name` field to the user model. It updates database migrations, API endpoints, and the admin panel to handle this field. Additionally, the `display_name` is now shown in the TopBar and WinnerBadge components, improving user experience.