fix: ok tuslari HardwareKeyboard, topbar 16px, border kaldirildi

lib/widgets/custom_title_bar.dart

@@ -12,7 +12,7 @@ class CustomTitleBar extends StatelessWidget {
       right: 0,
       child: DragToMoveArea(
         child: SizedBox(
-          height: 28,
+          height: 16,
           child: Stack(
             children: [
               Positioned(
@@ -63,22 +63,13 @@ class _BarButtonState extends State<_BarButton> {
         onEnter: (_) => setState(() => _hovered = true),
         onExit: (_) => setState(() => _hovered = false),
         child: Container(
-          width: 36,
-          height: 28,
-          decoration: BoxDecoration(
-            border: Border.all(
-              color: Colors.black54,
-              width: 1,
-            ),
-            color: _hovered ? Colors.red.withValues(alpha: 0.7) : Colors.transparent,
-            borderRadius: const BorderRadius.only(
-              topRight: Radius.circular(4),
-            ),
-          ),
+          width: 24,
+          height: 16,
+          color: _hovered ? Colors.red.withValues(alpha: 0.8) : Colors.transparent,
           child: Icon(
             widget.icon,
             color: Colors.white,
-            size: 14,
+            size: 12,
           ),
         ),
       ),