docs: Fix minor docs issues (#1656)

Fixes #1643 by removing invalid docs

crates/ui/src/tree.rs

@@ -42,7 +42,8 @@ pub(crate) fn init(cx: &mut App) {
 /// });
 ///
 /// tree(&state, |ix, entry, selected, window, cx| {
-///     div().px(px(16.) * entry.depth()).child(item.label.clone())
+///     let item = entry.item();
+///     ListItem::new(ix).pl(px(16.) * entry.depth()).child(item.label.clone())
 /// })
 /// ```
 pub fn tree<R>(state: &Entity<TreeState>, render_item: R) -> Tree

docs/docs/components/menu.md

@@ -24,7 +24,7 @@ use gpui::{actions, Action};
 Context menus appear when right-clicking on an element:
 
 ```rust
-use gpui_component::context_menu::ContextMenuExt;
+use gpui_component::menu::ContextMenuExt;
 
 div()
     .child("Right click me")

docs/docs/components/settings.md

@@ -454,5 +454,5 @@ Settings::new("app-settings")
 [SettingItem]: https://docs.rs/gpui-component/latest/gpui_component/setting/struct.SettingItem.html
 [SettingField]: https://docs.rs/gpui-component/latest/gpui_component/setting/enum.SettingField.html
 [NumberFieldOptions]: https://docs.rs/gpui-component/latest/gpui_component/setting/struct.NumberFieldOptions.html
-[GroupBox]: ./group_box.md
+[GroupBox]: ./group-box.md
 [Sizable]: https://docs.rs/gpui-component/latest/gpui_component/trait.Sizable.html

docs/docs/components/tree.md

@@ -144,29 +144,6 @@ tree(&self.tree_state, {
 })
 ```
 
-### Tree with Context Menu
-
-```rust
-tree(&tree_state, |ix, entry, selected, window, cx| {
-    ListItem::new(ix)
-        .selected(selected)
-        .child(entry.item().label.clone())
-        .on_secondary_mouse_down(MouseButton::Right, {
-            let item = entry.item().clone();
-            move |_, _, cx| {
-                cx.show_context_menu(
-                    ContextMenu::build(cx, |menu, cx| {
-                        menu.action("Rename", Rename)
-                            .action("Delete", Delete)
-                            .separator()
-                            .action("Copy Path", CopyPath)
-                    })
-                );
-            }
-        })
-})
-```
-
 ### Disabled Items
 
 ```rust