refactor(theme): update card and dialog themes to use CardThemeData and DialogThemeData

refactor(ui_components): adjust animation durations for smoother transitions
fix(dashboard): rename border property to hasBorder for clarity
fix(player): rename border property to hasBorder for consistency

lib/features/admin/screens/admin_panel.dart

@@ -137,7 +137,7 @@ class _AdminContentState extends ConsumerState<AdminContent>
         return GestureDetector(
           onTap: () => _tabController.animateTo(index),
           child: AnimatedContainer(
-            duration: AppTheme.durationFast,
+            duration: AppTheme.durationSm,
             padding: const EdgeInsets.symmetric(horizontal: 20, vertical: 10),
             decoration: BoxDecoration(
               color: isSelected ? AppColors.focusColor : Colors.transparent,