fix(ui): don't preserve for empty space (#1712)

For the following situation:

$ atuin search -i --inline-height 15
 [     HOST     ] query
  > 1m    19d ago item 1
  1 0s    1mo ago item 2
  2 0s    1mo ago item 3
  3 0s    1mo ago item 4
  4 0s    1mo ago item 5
  5 0s    1mo ago item 6

 Atuin v17.2.1 [...]

Scrolling item 6 results:

 [     HOST     ] query
    0s    1mo ago item 3
    0s    1mo ago item 4
    0s    1mo ago item 5
  > 0s    1mo ago item 6

 Atuin v17.2.1 [...]

With this patch it becomes:

 [     HOST     ] query
    1m    19d ago item 1
    0s    1mo ago item 2
    0s    1mo ago item 3
    0s    1mo ago item 4
    0s    1mo ago item 5
  > 0s    1mo ago item 6

 Atuin v17.2.1 [...]

atuin/src/command/client/search/history_list.rs

@@ -109,7 +109,7 @@ impl<'a> HistoryList<'a> {
  fn get_items_bounds(&self, selected: usize, offset: usize, height: usize) -> (usize, usize) {
  let offset = offset.min(self.history.len().saturating_sub(1));
 
- let max_scroll_space = height.min(10);
+ let max_scroll_space = height.min(10).min(self.history.len() - selected);
  if offset + height < selected + max_scroll_space {
  let end = selected + max_scroll_space;
  (end - height, end)