file picker not focused automatically after open

[jwang0512]

Describe the bug
file picker not focused automatically. the focus is still on the application window

Platform
MacOS

Platform OS version
12.6

How are you picking?

    FilePickerResult? result = await FilePicker.platform.pickFiles(
      dialogTitle: 'Select your file:',
      type: FileType.custom,
      allowedExtensions: ["abc"],
    );

Flutter Version details
3.7.7

[philenius]

Please search for similar issues before creating a new one. As numerously times explained, we cannot implement that.
Please read #1242, #1145, or #1059.

Please use the official Flutter plugin named file_selector (https://pub.dev/packages/file_selector) for a better user experience and more professional implementation.