fix(files): move the dotfile switch into the tree's right-click menu

The eye tile spent the panel's scarcest row — the header the tab tiles now
share — on an option that gets set once and then forgotten. It moves into
the menu the tree rows already have, as a row under "Reveal in Finder"
whose label says what the click will do ("Show Dotfiles" / "Hide Dotfiles")
rather than checking off the current state, since one checked item makes
`PopupMenu` reserve an icon gutter on every row in the menu.

The SFTP browser's header keeps its own controls: Refresh and the "⋯" menu
are actions on a live connection, not a view option.

src/ui/file_tree.rs

@@ -1247,9 +1247,18 @@ impl Tty7App {
                 let app = cx.entity().downgrade();
                 let path = path.clone();
                 let is_root = row.is_root;
+                let show_hidden = self.file_tree.show_hidden;
                 move |menu, _window, cx| {
                     let danger = cx.theme().danger;
-                    Self::tree_row_context_menu(menu, &path, is_dir, is_root, danger, &app)
+                    Self::tree_row_context_menu(
+                        menu,
+                        &path,
+                        is_dir,
+                        is_root,
+                        show_hidden,
+                        danger,
+                        &app,
+                    )
                 }
             });
 
@@ -1279,12 +1288,16 @@ impl Tty7App {
         out
     }
 
-    /// The per-row right-click menu, mirroring Warp's Project Explorer set.
+    /// The per-row right-click menu, mirroring Warp's Project Explorer set, plus
+    /// the tree's one view option (dotfiles) — which lives here rather than as a
+    /// header button: it is set once and then forgotten, and a tile in the header
+    /// spends the panel's scarcest row on it forever.
     fn tree_row_context_menu(
         menu: PopupMenu,
         path: &Path,
         is_dir: bool,
         is_root: bool,
+        show_hidden: bool,
         danger: gpui::Hsla,
         app: &gpui::WeakEntity<Self>,
     ) -> PopupMenu {
@@ -1379,6 +1392,8 @@ impl Tty7App {
                 }
             }));
 
+        menu = menu.separator().item(dotfiles_menu_item(show_hidden, app));
+
         if !is_root {
             menu = menu.separator().item(
                 PopupMenuItem::element(move |_window, _cx| {
@@ -1397,6 +1412,27 @@ impl Tty7App {
     }
 }
 
+/// The tree's dotfile switch as a row of the tree's existing right-click menu.
+///
+/// The label states what the click will do rather than checking off the current
+/// state: a single checked item makes `PopupMenu` reserve a left icon gutter on
+/// *every* row in the menu (see `tab_strip::window_chrome`), and the menu has a
+/// dozen rows with nothing to put in one.
+fn dotfiles_menu_item(show_hidden: bool, app: &gpui::WeakEntity<Tty7App>) -> PopupMenuItem {
+    let app = app.clone();
+    PopupMenuItem::new(if show_hidden {
+        "Hide Dotfiles"
+    } else {
+        "Show Dotfiles"
+    })
+    .on_click(move |_, _window, cx| {
+        let _ = app.update(cx, |this, cx| {
+            this.file_tree.show_hidden = !this.file_tree.show_hidden;
+            cx.notify();
+        });
+    })
+}
+
 /// The little drag ghost shown while a row is dragged toward a terminal.
 struct DragGhost {
     name: String,

src/ui/right_panel.rs

@@ -432,31 +432,6 @@ impl Tty7App {
             .into_any_element()
     }
 
-    /// The Files header's one control. No refresh button: the tree runs a
-    /// recursive filesystem watcher over its roots and invalidates its own caches,
-    /// so a manual refresh is a button that does what already happened.
-    fn files_controls(&self, cx: &mut Context<Self>) -> AnyElement {
-        let show_hidden = self.file_tree.show_hidden;
-        crate::ui::tab_strip::chrome_tile_sized(
-            Button::new("panel-tree-hidden").icon(Icon::new(IconName::Eye)),
-            TILE_SIZE_SM,
-            TILE_GLYPH_SM,
-            show_hidden,
-            cx,
-        )
-        .rounded_md()
-        .tooltip(if show_hidden {
-            "Hide dotfiles"
-        } else {
-            "Show dotfiles"
-        })
-        .on_click(cx.listener(|this, _, _w, cx| {
-            this.file_tree.show_hidden = !this.file_tree.show_hidden;
-            cx.notify();
-        }))
-        .into_any_element()
-    }
-
     /// A tab's filter box — the same borderless magnifier + input the tab rail
     /// uses, so everything in the window searches the same way. Sits under the
     /// header rather than in it: it's a full-width control, not a trailing tile.
@@ -1334,8 +1309,10 @@ impl Tty7App {
             return self.render_panel_sftp(host.unwrap_or_default(), window, cx);
         }
 
-        let controls = self.files_controls(cx);
-        let title = self.panel_title("Files", None, Some(controls), cx);
+        // No header control: the tree's one view option (dotfiles) is a
+        // right-click away in the tree itself (`file_tree::dotfiles_menu_item`),
+        // which is where you are when you want it.
+        let title = self.panel_title("Files", None, None, cx);
         let search = self.panel_search(&self.file_search.clone(), cx);
         let rows = self.render_file_tree_rows(window, cx);
         v_flex()