Fix folder dialog on linux so that we can select the folder properly.

[manyoso]

OMG, I can't believe I am just NOW figuring this out.

Apparently, on Linux you have to select the folder not enter it. NOTE: THIS MUST BE TESTED ON WINDOWS AND MAC TO MAKE SURE IT STILL WORKS!

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🚀	This description was created by Ellipsis for commit 9ebae03

Summary:

Fixed folder selection issue on Linux by changing the property used to retrieve the selected folder in openFolderDialog function.

Key points:

• Fixed folder selection issue on Linux by changing from folderDialog.currentFolder to folderDialog.selectedFolder.
• Files affected: gpt4all-chat/qml/AddCollectionView.qml, gpt4all-chat/qml/MySettingsStack.qml.
• Functions modified: openFolderDialog in both AddCollectionView.qml and MySettingsStack.qml.
• Testing required: Verify functionality on Windows and Mac.

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Generated with ❤️ by ellipsis.dev

[cebtenzzre]

Works as expected on macOS and Windows as well.