fundle installer script auto install completions/fundle.fish

[zuisong]

it seems add one line to download completions/fundle.fish

curl https://raw.githubusercontent.com/danhper/fundle/master/completions/fundle.fish \
--output $HOME/.config/fish/completions/fundle.fish

Can we do this? 😁

[zuisong]

And we can bundle __fish_prog_needs_command and __fish_prog_using_command into completions/fundle.fish

juse like https://github.com/Xiphoseer/Paradox/blob/d30a57ae20b8ffe4c63cb0400f03da8f785dd06d/paradox.fish#L3-L19