FIX_app header freeze fixes

lib/presentation/layouts/appheader.dart

@@ -108,7 +108,10 @@ class _AppHeaderState extends ConsumerState<AppHeader> {
       builder: (_) {
         return Positioned(
           left: offset.dx,
-          top: offset.dy + size.height + 8,
+          // top: offset.dy + size.height + 8,
+          // Reduced +8 to +2 to create an overlap so the mouse never leaves
+          // a "hoverable" area, which prevents the exit flicker.
+          top: offset.dy + size.height + 2,
           child: MouseRegion(
             onExit: (_) => _hidePopup(),
             child: Material(
@@ -239,8 +242,12 @@ class _AppHeaderState extends ConsumerState<AppHeader> {
   }
 
   void _hidePopup() {
+    if (_overlayEntry != null) {
       _overlayEntry?.remove();
       _overlayEntry = null;
+      // Optional: add a small setState if needed to refresh the UI layer
+      if (mounted) setState(() {});
+    }
   }
 
   @override
@@ -607,6 +614,13 @@ class _AppHeaderState extends ConsumerState<AppHeader> {
             final size = renderBox.size;
             _showPopup(context, offset, size, popupKey);
           },
+          onExit: (event) {
+            // We check if the mouse is moving downwards (toward the popup)
+            // If not moving toward popup, hide it.
+            if (event.localPosition.dy < 0 || event.localPosition.dx < 0 || event.localPosition.dx > 100) {
+              _hidePopup();
+            }
+          },
           child: Container(
             padding: const EdgeInsets.symmetric(horizontal: 10, vertical: 6),
             decoration: BoxDecoration(
@@ -659,7 +673,10 @@ class _AppHeaderState extends ConsumerState<AppHeader> {
   Widget _buildPopupItem({required String label, required VoidCallback onTap}) {
     return _HoverableContainer(
       label: label,
-      onTap: onTap,
+      onTap: () {
+        _hidePopup(); // Force hide before executing the specific onTap logic
+        onTap();
+      },
       normalColor: Colors.white,
       hoverColor: const Color(0xFFF5F5F5),
     );