Fixed the issue where edit textBox loses focus when using up/down to switch property values ​​on edit textBox (#12431)

* Fix editor text box focus issue when switching value property grid view

* Override function SelectInternal in file PropertyGridView.GridViewTextBox.cs

* Removing fullRefresh condition from function Refresh

Author: LeafShi1

src/System.Windows.Forms/src/System/Windows/Forms/Controls/PropertyGrid/PropertyGridInternal/PropertyGridView.cs

@@ -3992,7 +3992,7 @@ private void Refresh(bool fullRefresh, int startRow, int endRow)
             startRow = 0;
         }
 
-        if (fullRefresh || OwnerGrid.HavePropertyEntriesChanged())
+        if (OwnerGrid.HavePropertyEntriesChanged())
         {
             if (HasEntries && !InPropertySet && !CommitEditTextBox())
             {