- Alias everything to Bidi.nowrap() when in LTR UI, as using
LTR isolates seems uneeded when already LTR.
- Better wrapping of RTL filename by using auto direction and
LTR-isolating only the suffix so it's always on a side.
- menu.lua: handle bidi_wrap_func outside getMenuText(), which
may be used in other contexts.
- Add BD.filepath() and BD.dirpath()