Attempts at making fzf completion menu (through fifc) open in a popup.
popup.fish
opens a new kitty window while saving the current commandline in a variable.
fif.fish
only exists because kitten launch
requires an executable.
_fifc
is the completion function that I modified to work without an interactive shell (not sure why it's considered non-interactive) and to send the results to a socket which the original window has to be listening to.