pass skim options to the fuzzy-pdf output

[ornanovitch]

It would be awesome to be able to customize skim options, especially --bind and --preview-window.

I see it's hardcoded here:

fuzzy-pdf/src/main.rs

Lines 63 to 69 in 664323d

	let skim_options = SkimOptionsBuilder::default()
	.reverse(true)
	.exact(true)
	.preview_window(Some("down:80%"))
	.preview(Some(""))
	.build()
	.unwrap();

It's a functional out-of-the-box setup but I cannot add nor override any setting with SKIM_DEFAULT_OPTIONS= env variable.