project panel: Remove extra separator when "Rename" is hidden (zed-industries#41639)

Closes zed-industries#41633

Release Notes:

- N/A

Author: danilo-leal

crates/project_panel/src/project_panel.rs

@@ -1038,9 +1038,8 @@ impl ProjectPanel {
                                 "Copy Relative Path",
                                 Box::new(zed_actions::workspace::CopyRelativePath),
                             )
-                            .separator()
                             .when(!should_hide_rename, |menu| {
-                                menu.action("Rename", Box::new(Rename))
+                                menu.separator().action("Rename", Box::new(Rename))
                             })
                             .when(!is_root && !is_remote, |menu| {
                                 menu.action("Trash", Box::new(Trash { skip_prompt: false }))