Button Focus and Unfocus can't fire when run on MacOS

### Description

I created a MAUI button and tried to set Focus and Unfous events, but the events won't be fired on MacOS.
The button look like won't get focus if we use tab to shift focus, Click button also does not work.

### Steps to Reproduce

1. Create a new MAUI Project on MacOS,
2. Add a button with Focus and Unfocus events, and set event handler.
3. Run a application and shift focus with 'Tab'

### Version with bug

Release Candidate 1 (current)

### Last version that worked well

Unknown/Other

### Affected platforms

macOS

### Affected platform versions

MacOS 12.0.1

### Did you find any workaround?

_No response_

### Relevant log output

_No response_

### Depends on
- [x] https://github.com/dotnet/maui/issues/16330

Start by reproducing the issue in a new .NET MAUI project on macOS 12.0.1, using a button with Focus and Unfocus handlers and Tab navigation. Trace the macOS focus handling and review the linked dependency issue and closed pull request. Done means the button receives focus and both handlers fire when navigating with Tab and clicking.

Written by the indexing model from the issue text.