While EnableVisualStyles is false, MonthCalendar HitTest() does not return a valid HitTestInfo when clicking anywhere on the control.

### .NET version

Tested in current versions: .NET8, .NET9 and .NET10, and the issue exists in all versions.

### Did it work in .NET Framework?

Yes

### Did it work in any of the earlier releases of .NET Core or .NET 5+?

Issue exists in older versions (.NET5) as well.

### Issue description

While EnableVisualStyles is set to false, MonthCalendar HitTest() does not return a valid HitTestInfo when clicking any of the valid areas on the control. It always returns a HitArea of Nowhere. This exact scenario works fine in .NET Framework, and it works correctly if EnableVisualStyles is true.

### Steps to reproduce

[IsolatedSample.zip](https://github.com/user-attachments/files/23865144/IsolatedSample.zip)

Steps:
1. Run the attached sample.
2. Click anywhere on the MonthCalendar.

Results:
The listbox shows displays the Point and HitArea which is always "Nowhere"