Extended functionality to work in current directory with lower-case
letters and from home directory using upper-case. So, <leader>f
will search files in current dir, <leader>F in home dir.
Same for <leader>d/D and <leader>w/W.
HACK Also made it use fd instead of find by default for the speedup.
This should probably only be done after detecting if fd is even installed
on the system but I do not have time for this right now.
Added new quickselect mode to quickly open a displayed url. Changed
original quickselect to use leader-f mapping (instead of shift+f) and
made new mode callable through the shift+f version.
from: https://github.com/wez/wezterm/issues/1362
Delegated scroll mode invocation to leader-b, as in original setup.