[Feature] Bottom Layout config

[zhdenny]

fzf offers configurations to allow for the layout to be reversed (prompt at bottom, results from bottom-to-top).

Can fifc offer such options? currently, I press TAB and everything is from the top-down. It would be nice to allow users to configure this to be bottom-top instead.

Thanks!

[gazorby]

Hey @zhdenny, you can now extend fzf configuration by setting the fifc_custom_fzf_opts variable. This should let you reverse the layout.