selection: reverse skim output order in focus add -i

I think the average user will expect to scroll top to bottom, even if there's good reasons to render in the opposite order.

In particular, we want asynchronous suggestions to appear after the initial suggestions, rather than before, since that's not an intuitive location for them.

focus/operations/src/selection.rs

@@ -441,6 +441,7 @@ pub fn add_interactive(
         .multi(true)
         .bind(vec!["Space:toggle"])
         .preview(Some("Project description"))
+        .reverse(true)
         .build()
         .map_err(|err| anyhow::anyhow!("{}", err))?;