[Quick Accent] fix showing toolbar in the corner position (#22736)

* [Quick Accent] fix showing toolbar in the corner position

* [Quick Accent] set horizontal allignment according to toolbar position

* [Quick Accent] fix spelling mistake

src/modules/poweraccent/PowerAccent.Core/PowerAccent.cs

@@ -285,6 +285,11 @@ public class PowerAccent : IDisposable
         return Calculation.GetRawCoordinatesFromPosition(position, screen, window);
     }
 
+    public Position GetToolbarPosition()
+    {
+        return _settingService.Position;
+    }
+
     public void Dispose()
     {
         _keyboardListener.UnInitHook();

src/modules/poweraccent/PowerAccent.UI/Selector.xaml

@@ -42,6 +42,7 @@
     </Window.Resources>
     <Grid>
         <Border
+            x:Name="gridBorder"
             HorizontalAlignment="Center"
             VerticalAlignment="Center"
             Background="{DynamicResource SecondaryBackgroundBrush}"

src/modules/poweraccent/PowerAccent.UI/Selector.xaml.cs

@@ -9,6 +9,7 @@ using System.Globalization;
 using System.Linq;
 using System.Unicode;
 using System.Windows;
+using PowerAccent.Core.Services;
 using PowerToys.PowerAccentKeyboardService;
 using Point = PowerAccent.Core.Point;
 using Size = PowerAccent.Core.Size;
@@ -69,6 +70,7 @@ public partial class Selector : Window, IDisposable, INotifyPropertyChanged
             characters.SelectedIndex = 0;
             this.UpdateLayout(); // Required for filling the actual width/height before positioning.
             SetWindowPosition();
+            SetWindowAlignment();
             Show();
             Microsoft.PowerToys.Telemetry.PowerToysTelemetry.Log.WriteEvent(new PowerAccent.Core.Telemetry.PowerAccentShowAccentMenuEvent());
         }
@@ -91,6 +93,17 @@ public partial class Selector : Window, IDisposable, INotifyPropertyChanged
         this.Top = position.Y;
     }
 
+    private void SetWindowAlignment()
+    {
+        gridBorder.HorizontalAlignment = _powerAccent.GetToolbarPosition() switch
+        {
+            Position.Left or Position.TopLeft or Position.BottomLeft => HorizontalAlignment.Left,
+            Position.Right or Position.TopRight or Position.BottomRight => HorizontalAlignment.Right,
+            Position.Center or Position.Top or Position.Bottom => HorizontalAlignment.Center,
+            _ => HorizontalAlignment.Center
+        };
+    }
+
     protected override void OnClosed(EventArgs e)
     {
         _powerAccent.Dispose();