Is your feature request related to a problem? Please describe.
When importing a filesystem, Ghidra allows the user to open it in the File System dialog, or to immediately open the Batch Import dialog. The former allows for the user to select the intended FileSystem class, the latter does not.

Describe the solution you'd like
The Batch Import dialog should allow users to select the intended FileSystem class.

Describe alternatives you've considered
N/A

Additional context
This appears to be the problem line:

FileSystemProbeConflictResolver.CHOOSEFIRST should be FileSystemProbeConflictResolver.GUI_PICKER.