Add option to enable "New Folder" on MacOS

[ty1824]

Many file dialogs I interact with on MacOS have a "New Folder" button in the bottom left. However, FileKit doesn't seem to make this available by default, nor does it offer a configuration option to enable it.

Example:

[vinceglb]

Hi @ty1824! Thanks for creating this issue.

In the next version 0.10 of FileKit, I'll add an option to manage the possibility to add or remove this "New Folder" button on macOS, and JVM macOS targets. Also, the button "New Folder" will be displayed by default.

// macosMain
actual val settings = FileKitDialogSettings(canCreateDirectories = true)

// jvmMain
actual val settings = FileKitDialogSettings(macOS = FileKitMacOSSettings(canCreateDirectories = true))

// commonMain
expect val settings: FileKitDialogSettings
val result = FileKit.pickFile(platformSettings = settings)

[ty1824]

Hey @vinceglb!This looks awesome - would fit my needs perfectly. Thanks for the quick response, looking forward to it :)