file_finder: Display duplicated file in file finder history (#41917)

Closes #41850

When digging into this I figured out that basically what was going on is
in the history of the file finder it doesn't update the name of the file
duplicated because when you duplicate a file it's named automatically
with `filename copy` and so this filename was added to the history but
not updated so once you wanted to go back into this file it was not part
of file finder displayed history anymore because this file doesn't exist
anymore but the entity id remains the same.
I was also to reproduce this bug when just renaming a file.

Release Notes:

- Fixed: Display duplicated file in file finder history

---------

Signed-off-by: Benjamin <5719034+bnjjj@users.noreply.github.com>
Co-authored-by: Conrad Irwin <conrad.irwin@gmail.com>
Co-authored-by: Lukas Wirth <me@lukaswirth.dev>

crates/workspace/src/pane.rs

@@ -1123,7 +1123,6 @@ impl Pane {
                 false
             }
         });
-
         if let Some(existing_item_index) = existing_item_index {
             // If the item already exists, move it to the desired destination and activate it
 
@@ -4132,6 +4131,20 @@ impl NavHistory {
             .retain(|entry| entry.item.id() != item_id);
     }
 
+    pub fn rename_item(
+        &mut self,
+        item_id: EntityId,
+        project_path: ProjectPath,
+        abs_path: Option<PathBuf>,
+    ) {
+        let mut state = self.0.lock();
+        let path_for_item = state.paths_by_item.get_mut(&item_id);
+        if let Some(path_for_item) = path_for_item {
+            path_for_item.0 = project_path;
+            path_for_item.1 = abs_path;
+        }
+    }
+
     pub fn path_for_item(&self, item_id: EntityId) -> Option<(ProjectPath, Option<PathBuf>)> {
         self.0.lock().paths_by_item.get(&item_id).cloned()
     }

crates/workspace/src/workspace.rs

@@ -4325,6 +4325,10 @@ impl Workspace {
         cx.emit(Event::PaneRemoved);
     }
 
+    pub fn panes_mut(&mut self) -> &mut [Entity<Pane>] {
+        &mut self.panes
+    }
+
     pub fn panes(&self) -> &[Entity<Pane>] {
         &self.panes
     }