Scale the Anchor editor according to DPI (#13853)

<!-- Please read CONTRIBUTING.md before submitting a pull request -->

Related #13830


## Proposed changes

- Update the `InitializeComponent` method to draw the Anchor Editor
using the scaled size instead of hard-coding it.

<!-- We are in TELL-MODE the following section must be completed -->

## Customer Impact

- On High DPI environment, Anchor editor in propertyGrid can be scaled
well

## Regression? 

-  No

## Risk

- Minimal

<!-- end TELL-MODE -->


## Screenshots <!-- Remove this section if PR does not change UI -->

### Before
In 300% DPI:
<img width="1783" height="750" alt="image"
src="https://github.com/user-attachments/assets/e7373f7c-db87-4b56-a370-b98e14da03aa"
/>


### After

In 300% DPI:
<img width="1281" height="846" alt="image"
src="https://github.com/user-attachments/assets/c5c7560a-fcf1-42ba-97a9-32ed69e01470"
/>


## Test methodology <!-- How did you ensure quality? -->

-  Manually


## Test environment(s) <!-- Remove any that don't apply -->

- .net 10.0.0-rc.1.25454.102


<!-- Mention language, UI scaling, or anything else that might be
relevant -->

###### Microsoft Reviewers: [Open in
CodeFlow](https://microsoft.github.io/open-pr/?codeflow=https://github.com/dotnet/winforms/pull/13853)

Author: LeafShi1

src/System.Windows.Forms.Design/src/System/Windows/Forms/Design/AnchorEditor.AnchorUI.cs

@@ -69,44 +69,51 @@ public virtual AnchorStyles GetSelectedAnchor()
 
         internal virtual void InitializeComponent()
         {
-            int XBORDER = SystemInformation.Border3DSize.Width;
-            int YBORDER = SystemInformation.Border3DSize.Height;
+            int XBORDER = ScaleHelper.ScaleToInitialSystemDpi(SystemInformation.Border3DSize.Width);
+            int YBORDER = ScaleHelper.ScaleToInitialSystemDpi(SystemInformation.Border3DSize.Height);
             SuspendLayout();
-            SetBounds(0, 0, 90, 90);
+
+            var pixel_10 = ScaleHelper.ScaleToInitialSystemDpi(10);
+            var pixel_30 = ScaleHelper.ScaleToInitialSystemDpi(30);
+            var pixel_40 = ScaleHelper.ScaleToInitialSystemDpi(40);
+            var pixel_60 = ScaleHelper.ScaleToInitialSystemDpi(60);
+            var pixel_90 = ScaleHelper.ScaleToInitialSystemDpi(90);
+
+            SetBounds(0, 0, pixel_90, pixel_90);
 
             AccessibleName = SR.AnchorEditorAccName;
 
             _container.Location = new Point(0, 0);
-            _container.Size = new Size(90, 90);
+            _container.Size = new Size(pixel_90, pixel_90);
             _container.Anchor = AnchorStyles.Top | AnchorStyles.Left | AnchorStyles.Bottom | AnchorStyles.Right;
 
-            _control.Location = new Point(30, 30);
-            _control.Size = new Size(30, 30);
+            _control.Location = new Point(pixel_30, pixel_30);
+            _control.Size = new Size(pixel_30, pixel_30);
             _control.Anchor = AnchorStyles.Top | AnchorStyles.Left | AnchorStyles.Bottom | AnchorStyles.Right;
 
-            _right.Location = new Point(60, 40);
-            _right.Size = new Size(30 - XBORDER, 10);
+            _right.Location = new Point(pixel_60, pixel_40);
+            _right.Size = new Size(pixel_30 - XBORDER, pixel_10);
             _right.TabIndex = 2;
             _right.TabStop = true;
             _right.Anchor = AnchorStyles.Right;
             _right.AccessibleName = SR.AnchorEditorRightAccName;
 
-            _left.Location = new Point(XBORDER, 40);
-            _left.Size = new Size(30 - XBORDER, 10);
+            _left.Location = new Point(XBORDER, pixel_40);
+            _left.Size = new Size(pixel_30 - XBORDER, pixel_10);
             _left.TabIndex = 0;
             _left.TabStop = true;
             _left.Anchor = AnchorStyles.Left;
             _left.AccessibleName = SR.AnchorEditorLeftAccName;
 
-            _top.Location = new Point(40, YBORDER);
-            _top.Size = new Size(10, 30 - YBORDER);
+            _top.Location = new Point(pixel_40, YBORDER);
+            _top.Size = new Size(pixel_10, pixel_30 - YBORDER);
             _top.TabIndex = 1;
             _top.TabStop = true;
             _top.Anchor = AnchorStyles.Top;
             _top.AccessibleName = SR.AnchorEditorTopAccName;
 
-            _bottom.Location = new Point(40, 60);
-            _bottom.Size = new Size(10, 30 - YBORDER);
+            _bottom.Location = new Point(pixel_40, pixel_60);
+            _bottom.Size = new Size(pixel_10, pixel_30 - YBORDER);
             _bottom.TabIndex = 3;
             _bottom.TabStop = true;
             _bottom.Anchor = AnchorStyles.Bottom;