Fix the following errors:
widgets/dirtree.go:401:18: not enough arguments in call to dt.UiConfig
have ()
want (string) (typecheck)
if dt.UiConfig().DirListCollapse != 0 {
^
widgets/dirtree.go:402:38: not enough arguments in call to dt.UiConfig
have ()
want (string) (typecheck)
node.Hidden = depth > dt.UiConfig().DirListCollapse
^
Since commit e0b62db583c3 ("fix: Set proper UIConfig for msgstores"),
DirectoryTree.UiConfig() takes a path parameter.
Fixes: db39ca181a ("dirtree: add dirtree-collapse config setting")
Signed-off-by: Robin Jarry <robin@jarry.cc>