vim: Grep in visual line (#33414)

From
https://github.com/zed-industries/zed/pull/10831#issuecomment-2078523272

> I agree with not prefilling the search bar with a multiline query.

Not sure if it's a bug that a one-line visual line selection does not
get pre filled, this PR corrects the query to use the visual line
selection instead of the 'normal' selection

Release Notes:

- N/A

crates/editor/src/items.rs

@@ -1521,7 +1521,7 @@ impl SearchableItem for Editor {
     fn query_suggestion(&mut self, window: &mut Window, cx: &mut Context<Self>) -> String {
         let setting = EditorSettings::get_global(cx).seed_search_query_from_cursor;
         let snapshot = &self.snapshot(window, cx).buffer_snapshot;
-        let selection = self.selections.newest::<usize>(cx);
+        let selection = self.selections.newest_adjusted(cx);
 
         match setting {
             SeedQuerySetting::Never => String::new(),