Group header actions and restore refresh/close button behavior

MainWindow.xaml

@@ -294,6 +294,18 @@
                 </Setter.Value>
             </Setter>
         </Style>
+        <Style TargetType="Button"
+               x:Key="HeaderGroupButtonStyle"
+               BasedOn="{StaticResource HeaderIconButtonStyle}">
+            <Setter Property="BorderThickness"
+                    Value="0" />
+            <Setter Property="Background"
+                    Value="Transparent" />
+            <Setter Property="Width"
+                    Value="32" />
+            <Setter Property="Height"
+                    Value="32" />
+        </Style>
 
         <DrawingImage x:Key="OverlayOffline">
             <DrawingImage.Drawing>
@@ -341,14 +353,31 @@
                        HorizontalAlignment="Left"
                        Margin="14,14,0,0"
                        x:Name="Logo" />
-                <Button x:Name="Close_Text"
+                <Border HorizontalAlignment="Right"
-                        Style="{StaticResource HeaderIconButtonStyle}"
-                        HorizontalAlignment="Right"
                         VerticalAlignment="Top"
                         Margin="0,12,12,0"
                         Panel.ZIndex="500"
+                        CornerRadius="10"
+                        BorderThickness="1"
+                        BorderBrush="{DynamicResource panelBorderColor}"
+                        Background="{DynamicResource headerControlBackgroundColor}">
+                    <StackPanel Orientation="Horizontal">
+                        <Button x:Name="RefreshIcon"
+                                Style="{StaticResource HeaderGroupButtonStyle}"
+                                ToolTip="Refresh"
+                                Click="OnRefreshButtonClick">
+                            <Image Source="{DynamicResource nav_appbar_refresh}"
+                                   Tag="ICO"
+                                   Width="16"
+                                   Height="16" />
+                        </Button>
+                        <Border Width="1"
+                                Margin="0,6"
+                                Background="{DynamicResource panelBorderColor}" />
+                        <Button x:Name="Close_Text"
+                                Style="{StaticResource HeaderGroupButtonStyle}"
                                 ToolTip="{x:Static resx:Resources.close}"
-                        PreviewMouseDown="OnMinimizeClicked">
+                                Click="OnMinimizeButtonClick">
                             <TextBlock Text="X"
                                        FontSize="15"
                                        FontWeight="Bold"
@@ -356,19 +385,8 @@
                                        VerticalAlignment="Center"
                                        HorizontalAlignment="Center" />
                         </Button>
-                <Button x:Name="RefreshIcon"
+                    </StackPanel>
-                        Style="{StaticResource HeaderIconButtonStyle}"
+                </Border>
-                        HorizontalAlignment="Right"
-                        VerticalAlignment="Top"
-                        Margin="0,12,88,0"
-                        Panel.ZIndex="500"
-                        ToolTip="Refresh"
-                        PreviewMouseDown="OnRefreshClicked">
-                    <Image Source="{DynamicResource nav_appbar_refresh}"
-                           Tag="ICO"
-                           Width="16"
-                           Height="16" />
-                </Button>
                 <!--<TextBlock MouseDown="OnCloseClicked" HorizontalAlignment="Right" FontSize="20" FontWeight="Bold" Margin="0,-5,5,0" Cursor="Hand" Panel.ZIndex="500"  >X</TextBlock>-->
                 <Image Source="{DynamicResource nav_appbar_network_server_disconnect}"
                        Tag="ICO"

MainWindow.xaml.cs

@@ -1478,6 +1478,16 @@ namespace C4IT_CustomerPanel
             HideMainForm();
         }
 
+        private void OnRefreshButtonClick(object sender, RoutedEventArgs e)
+        {
+            OnRefreshClicked(sender, null);
+        }
+
+        private void OnMinimizeButtonClick(object sender, RoutedEventArgs e)
+        {
+            OnMinimizeClicked(sender, null);
+        }
+
         private void OnNotifierMenuClicked(object sender, EventArgs e)
         {
             if (!(sender is ToolStripMenuItem menuItem))
@@ -1606,6 +1616,9 @@ namespace C4IT_CustomerPanel
              
         private void GridTop_MouseDown(object sender, MouseButtonEventArgs e)
         {
+            if (e.OriginalSource is DependencyObject source && FindVisualParent<Button>(source) != null)
+                return;
+
             if (e.ChangedButton == MouseButton.Left && ConfigSettings.GetConfig()._isDraggable)
                 this.DragMove();
         }
@@ -1633,6 +1646,19 @@ namespace C4IT_CustomerPanel
             }
         }
 
+        private static T FindVisualParent<T>(DependencyObject source) where T : DependencyObject
+        {
+            while (source != null)
+            {
+                if (source is T target)
+                    return target;
+
+                source = VisualTreeHelper.GetParent(source);
+            }
+
+            return null;
+        }
+
         private void App_KeyDown(object sender, KeyEventArgs e)
         {
             if (((Keyboard.Modifiers & ModifierKeys.Alt) == ModifierKeys.Alt) && Keyboard.IsKeyDown(Key.R) && ConfigSettings.GetConfig()._isDraggable)