Sharing a file or folder over LocalSend opened a terminal to run an fzf
pick over a find of the whole home directory, which is slow on a large
home, shows no previews, and looks nothing like the rest of the desktop.
The portal chooser is already how the other pickers here ask.
The chooser has a directory mode, so folder sharing asks for one the same
way, and neither entry needs a terminal to host a picker anymore.
A chooser that never opens is told apart from nobody picking anything, so
a portal failure says so rather than passing for a cancelled share.
Co-authored-by: Claude Opus 5 <noreply@anthropic.com>