fix trash_move

this bug prevents using jupyter* in research environments where file systems aren't always local

e.g. https://github.com/jupyterlab/jupyterlab/issues/5781 and our own use at https://cri.uchicago.edu/

cc @annawoodard

send2trash/plat_other.py

@@ -112,7 +112,8 @@ def trash_move(src, dst, topdir=None):
 
     with open(op.join(infopath, destname + INFO_SUFFIX), "w") as f:
         f.write(info_for(src, topdir))
-    os.rename(src, op.join(filespath, destname))
+    shutil.copy(src, op.join(filespath, destname))
+    os.remove(src)
 
 
 def find_mount_point(path):