[Mac] FlowDirection Property of DatePicker Is Not Functioning as Expected

### Description

- On Mac, when the FlowDirection of the DatePicker is set to RightToLeft, the control does not update and continues to display as LeftToRight.
- On Windows, it works as expected.

| Actual Behaviour | Expected Behaviour |
|----------|----------|
| | |

### Steps to Reproduce

1. Run the below attached sample.
2. Click the ToggleFlowDirection button.
3. Observe that even when the flow direction is set to RightToLeft, it still remains as LeftToRight.

[SampleRepo.zip](https://github.com/user-attachments/files/20882708/SampleRepo.zip)

### Link to public reproduction project repository

_No response_

### Version with bug

9.0.70 SR7

### Is this a regression from previous behavior?

No, this is something new

### Last version that worked well

_No response_

### Affected platforms

macOS

### Affected platform versions

_No response_

### Did you find any workaround?

_No response_

### Relevant log output

```shell

```

Start by running the attached SampleRepo.zip on macOS and reproduce the DatePicker behavior after clicking ToggleFlowDirection. Compare the RightToLeft and LeftToRight results shown in the issue; done means the macOS DatePicker updates to RightToLeft as it does on Windows.

Written by the indexing model from the issue text.