[release/8.0] InvalidOperationException when closing a dialog with focused DataGridView control (#13350)

Backport of #13320 to release/8.0
Fixes #13304

## Proposed changes
- When the DataGridView is in edit mode and the parent form is being
closed, the DataGridView's `EndEdit` triggers the `CurrentCell` setting
logic, because the DGV's handle has been destroyed at this time, we are
re-creating it and then re-enter logic that sets up the current cell
causing an exception to be thrown. Checking `isHandleCreated` before
calling `EndEdit` can avoid executing related logic when the control has
been destroyed, thereby preventing exceptions from occurring.
 
 
## Customer Impact
- When the DataGridView is in editing mode, its dialog box can be closed
normally

## Regression?
- Yes, introduced in  #4637

## Testing
- Manual testing with the user-provided project

## Risk
- Low
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CodeFlow](https://microsoft.github.io/open-pr/?codeflow=https://github.com/dotnet/winforms/pull/13350)

Author: LeafShi1

src/System.Windows.Forms/src/System/Windows/Forms/DataGridView.Methods.cs

@@ -27460,7 +27460,8 @@ protected virtual bool SetCurrentCellAddressCore(int columnIndex,
             {
                 int oldCurrentCellX = _ptCurrentCell.X;
                 int oldCurrentCellY = _ptCurrentCell.Y;
-                if (oldCurrentCellX >= 0 &&
+                if (IsHandleCreated &&
+                    oldCurrentCellX >= 0 &&
                     !_dataGridViewState1[State1_TemporarilyResetCurrentCell] &&
                     !_dataGridViewOper[OperationInDispose])
                 {