fix: left side by layout did not update after size changed

Author: love-linger

src/Views/Repository.axaml

@@ -154,7 +154,7 @@
           </TextBox.InnerRightContent>
         </TextBox>
 
-        <Grid Grid.Row="2" x:Name="LeftSidebarGroups" Margin="0,4,0,0" RowDefinitions="28,Auto,28,Auto,28,Auto,28,Auto,28,Auto">
+        <Grid Grid.Row="2" x:Name="LeftSidebarGroups" Margin="0,4,0,0" RowDefinitions="28,Auto,28,Auto,28,Auto,28,Auto,28,Auto" SizeChanged="OnLeftSidebarSizeChanged">
           <!-- Local Branches -->
           <ToggleButton Grid.Row="0" Classes="group_expander" IsChecked="{Binding IsLocalBranchGroupExpanded, Mode=TwoWay}">
             <TextBlock Classes="group_header_label" Margin="0" Text="{DynamicResource Text.Repository.LocalBranches}"/>

src/Views/Repository.axaml.cs

@@ -144,9 +144,13 @@ private void OnDoubleTappedWorktree(object sender, TappedEventArgs e)
         private void OnLeftSidebarDataGridPropertyChanged(object _, AvaloniaPropertyChangedEventArgs e)
         {
             if (e.Property == DataGrid.ItemsSourceProperty || e.Property == DataGrid.IsVisibleProperty)
-            {
                 UpdateLeftSidebarLayout();
-            }
+        }
+
+        private void OnLeftSidebarSizeChanged(object _, SizeChangedEventArgs e)
+        {
+            if (e.HeightChanged)
+                UpdateLeftSidebarLayout();
         }
 
         private void UpdateLeftSidebarLayout()