Add icons to the built-in picker for Open (#30893)

![image](https://github.com/user-attachments/assets/f1167251-627f-48f7-a948-25c06c842e4b)


Release Notes:

- Added icons to the built-in picker for `Open` dialog

crates/file_finder/src/open_path_prompt.rs

@@ -1,9 +1,12 @@
+use crate::file_finder_settings::FileFinderSettings;
+use file_icons::FileIcons;
 use futures::channel::oneshot;
 use fuzzy::{StringMatch, StringMatchCandidate};
 use picker::{Picker, PickerDelegate};
 use project::{DirectoryItem, DirectoryLister};
+use settings::Settings;
 use std::{
-    path::{MAIN_SEPARATOR_STR, Path, PathBuf},
+    path::{self, MAIN_SEPARATOR_STR, Path, PathBuf},
     sync::{
         Arc,
         atomic::{self, AtomicBool},
@@ -349,8 +352,9 @@ impl PickerDelegate for OpenPathDelegate {
         ix: usize,
         selected: bool,
         _window: &mut Window,
-        _: &mut Context<Picker<Self>>,
+        cx: &mut Context<Picker<Self>>,
     ) -> Option<Self::ListItem> {
+        let settings = FileFinderSettings::get_global(cx);
         let m = self.matches.get(ix)?;
         let directory_state = self.directory_state.as_ref()?;
         let candidate = directory_state.match_candidates.get(*m)?;
@@ -361,9 +365,23 @@ impl PickerDelegate for OpenPathDelegate {
             .map(|string_match| string_match.positions.clone())
             .unwrap_or_default();
 
+        let file_icon = maybe!({
+            if !settings.file_icons {
+                return None;
+            }
+            let icon = if candidate.is_dir {
+                FileIcons::get_folder_icon(false, cx)?
+            } else {
+                let path = path::Path::new(&candidate.path.string);
+                FileIcons::get_icon(&path, cx)?
+            };
+            Some(Icon::from_path(icon).color(Color::Muted))
+        });
+
         Some(
             ListItem::new(ix)
                 .spacing(ListItemSpacing::Sparse)
+                .start_slot::<Icon>(file_icon)
                 .inset(true)
                 .toggle_state(selected)
                 .child(HighlightedLabel::new(