Blender Finder now understands that directory paths should be suffixed
with `blender` (Linux, macOS) or `blender.exe` (Windows).
Giving the Setup Assistant a path like `C:\Program files\Blender
Foundation\Blender 3.2` will now just work. This is considerably simpler
for many users, as copy-pasting a directory from a file explorer is
simpler than obtaining/typing the path to the executable.
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