file-tree import error
file-tree is currently listed as an extra requirement, however fsleyes crashes without it:
File "/Users/ndcn0236/.local/pipx/venvs/fsleyes/lib/python3.9/site-packages/fsleyes/plugins/controls/filetreepanel/__init__.py", line 17, in <module>
import file_tree
ModuleNotFoundError: No module named 'file_tree'
file-tree (and file-tree-fsl) should be either made one of the main requirements or the ImportError should be caught.