No support to remove or modify visual focus style

### Description

The visual focus style is applied to controls in Tab key press on windows platform. But there is no support to remove or modify this focus style.

Focus style is not applied on MacCatalyst. so in our control, we handle this style locally on tab key press but in the windows platform, we cannot change this style.

In native WinUI platform, we can restrict this using [IsTabStop ](https://learn.microsoft.com/en-us/uwp/api/windows.ui.xaml.controls.control.istabstop?view=winrt-22621) and [usesystemfocusvisuals](https://learn.microsoft.com/en-us/uwp/api/windows.ui.xaml.controls.control.usesystemfocusvisuals?view=winrt-22621) API's.

### Steps to Reproduce

1. Run any sample with a button control.
2. Press tab key and the default visual focus style will be applied.

### Link to public reproduction project repository

https://github.com/KarthikRajaAKR/Samples/tree/main/VisualFocus

### Version with bug

6.0.486 (current)

### Last version that worked well

Unknown/Other

### Affected platforms

Windows

### Affected platform versions

Windows SDK 10.0.19041

### Did you find any workaround?

No

### Relevant log output

_No response_

Start with the linked VisualFocus reproduction and the Windows control handling in .NET MAUI. Compare the requested IsTabStop and UseSystemFocusVisuals behavior with the current tab-focus behavior, then verify that Windows controls can remove or modify the visual focus style without changing the MacCatalyst behavior.

Written by the indexing model from the issue text.