Allow sorting of folders/directories together with files

[dersimn]

macOS usually sorts folders/directories together with files in Finder,
Windows usually shows directories/folders on top of files in Windows Explorer

It would be nice to have an additional check mark for e.g. here to enable/disable sorting folders before files, it could be named
[_] Sort folders before files (or similar) here:

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When enabled/disabled sorting alphabetically for name would output this (like macOS):

[freeplant]

In version 13.0, we will support extended file properties and rich views. Then you can sort files in a more flexible way with a table view for files. You can test again at that time.